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Portrait of Suhrawardi
Unknown author · Public domain

Medieval Islamic · 12th c.

Suhrawardi

سهروردی1154–1191Illuminationism (Ishrāqī)

Shihab al-Din Yahya al-Suhrawardi, executed at Aleppo in 1191, founded the philosophy of illumination. He argued that Peripatetic definitions cannot make essences known, that the self knows itself by its own presence rather than through a representation, and that reality is a hierarchy of lights, differing only in intensity, which flows from the Light of Lights. Existence, by contrast, is a concept the mind adds.

Central question
Can knowledge rest on definitions and abstracted forms, or must it rest on what is directly present, and what is reality if it is light?
Method
Suhrawardi joins discursive proof to "tasting" (dhawq): what the sage first sees by ascetic practice and vision he then seeks to prove, and proof without vision is incomplete. How Suhrawardi works

nūr / ẓulma lightnūr al-anwār the Light of Lightsishrāq illuminational-ʿilm al-ḥuḍūrī knowledge by presenceal-nūr al-isfahbad the commanding light

Wrote in Arabic and Persian. Peripatetic-style treatises (the Intimations), the Philosophy of Illumination (1186), shorter Persian and Arabic treatises and symbolic tales. The Philosophy of Illumination is cited by part and discourse; its standard paragraph numbers are those of the Walbridge–Ziai edition (1999). No text or translation is held in Hekmat.

  • Stated in the text 1
  • Scholarly consensus 18
  • Contested reading 1

4 arguments4 works0 quotations checked word for word0 of 24 positions and arguments reviewed by an expert

Answers 15 of 20 questions · does not address 5Why some questions don’t apply

Metaphysics

Being and realityThe One beyond being

What is real is light and darkness. Self-subsistent lights form a hierarchy that flows from the Light of Lights, one and simple, through the dominating lights, down to the managing lights that govern bodies; bodies are dark barriers. Lights differ only in intensity. Existence is not a further reality in things but a concept the mind adds.

Scholarly consensusnūr al-anwār, al-anwār al-qāhira, nūr, ẓulma, barzakh, iʿtibār ʿaqlīDraft — not yet reviewed

The Philosophy of Illumination Part II, Discourse 1 · The Philosophy of Illumination Part II, Discourse 2 · The Philosophy of Illumination Part I, Discourse 3

`the-one` fits the emanation of a hierarchy from a single first principle, but the Light of Lights is not beyond thought: it is a light aware of itself. `god-as-being` does not fit, since he denies that existence is real in things. The Sadrian tradition reads him as holding the primacy of quiddity; the label is anachronistic, because his lights are graded by intensity, as Sadra later says existence is.

UniversalsRealism before things

Each natural species has a separate light that governs it and holds its perfections, its "lord"; Suhrawardi identifies these lights with Plato's Forms and defends them against the Peripatetics. Universality as such, being said of many, is a consideration of the mind.

Scholarly consensusarbāb al-anwāʿ, al-muthul al-aflāṭūniyya, kullī, iʿtibār ʿaqlīDraft — not yet reviewed

The Philosophy of Illumination Part II · The Philosophy of Illumination Part I, Discourse 3

The lords of the species are individual lights, not universals predicated of their members, so `platonic-realism` fits their separate, mind-independent existence but not the universal as such, which is mental. Walbridge (The Leaven of the Ancients, 2000) treats his Platonism at length.

God and the fundamentalDemonstrable by reason

Reason proves a first light: a dependent immaterial light cannot owe its being to darkness, and the series of lights that depend on others cannot go on without end, so it ends in a Light of Lights that depends on nothing and is one.

Scholarly consensusnūr al-anwār, ghanī, faqīrDraft — not yet reviewed

The Philosophy of Illumination Part II, Discourse 1

Soul and bodySeparable soul

The human soul is an immaterial light, the commanding or managing light, which governs a body it is not. A body is a dark barrier, mere magnitude, with no awareness of itself; the soul is aware of itself even when it attends to nothing of its body.

Scholarly consensusal-nūr al-isfahbad, al-nūr al-mudabbir, barzakh, ʿalāqaDraft — not yet reviewed

The Philosophy of Illumination Part II, Discourse 1 · The Philosophy of Illumination Part II, Discourse 4 · The Intimations dream-vision of Aristotle

The tie of soul to body is love and governance (ʿalāqa), not form to matter; he also rejects the Peripatetic analysis of bodies into matter and form.

Death and immortalityThe soul is immortal

The managing light does not perish with the body, since a light has no contrary and nothing in it can corrupt. After death pure souls join the world of lights; souls not yet pure live among suspended images, where they meet pleasures and pains that match what they became.

Scholarly consensusal-muthul al-muʿallaqa, ʿālam al-mithāl, maʿādDraft — not yet reviewed

The Philosophy of Illumination Part II, Discourse 5

He sets out the case for transmigration of imperfect souls without clearly endorsing or refuting it.

The cosmosEternal but produced

The world has no beginning in time. The Light of Lights is eternal and its illumination never ceases, so the lights and the heavens that depend on it are eternal too, and the motions of the heavens have no first moment.

Scholarly consensusqidam, ishrāq, ḥarakāt al-aflākDraft — not yet reviewed

The Philosophy of Illumination Part II

Freedom and determinismNot addressed

Not addressed. The works cited do not ask whether human choices are determined or whether responsibility needs freedom; agency appears only as the soul's governance of its body and its love for the lights above.

Not coded; Suhrawardi's account of the soul's love and subjection toward higher lights answers a different question.

Scholarly consensusDraft — not yet reviewed

CausationCauses necessitate

To cause is to illuminate: each higher light shines on the lower, which depends on it wholly, and the Light of Lights, which never ceases to shine, makes its effects permanent; from the one only one proceeds directly. Lower lights also turn toward the higher in love while the higher dominate them. Necessity, possibility and existence themselves are considerations of the mind, not further realities in things.

Scholarly consensusThe Philosophy of Illumination, Parts I–IIishrāq, qahr, maḥabba, nūr al-anwār, ghanī, faqīr, iʿtibārāt ʿaqliyyaDraft — not yet reviewed

The Philosophy of Illumination Part II, Discourse 1 · The Philosophy of Illumination Part II, Discourse 2 · The Philosophy of Illumination Part I, Discourse 3

The option fits the dependence and permanence of illumination; the modal concepts are mental for him, which sits beside `mind-contributed` for the concepts, though not for the dependence they describe.

Epistemology

Sources of knowledgeIllumination from a higher intellect

The soul knows by presence. It knows itself because it is a light manifest to itself, and it knows other things when they are present to it with nothing veiling them, or when the higher lights shine on it and it witnesses them. The highest knowledge comes from this illumination and witnessing, prepared by ascetic practice, not from definitions or abstracted forms.

Scholarly consensusishrāq, al-ʿilm al-ḥuḍūrī, mushāhada, dhawqDraft — not yet reviewed

The Philosophy of Illumination Introduction · The Philosophy of Illumination Part II, Discourse 1 · The Intimations dream-vision of Aristotle

`illumination` catches the shining of higher lights on a prepared soul, but the core of the view, knowledge by presence with no representing form, has no option; `intuition` is close in structure but is defined in phenomenological terms. Sense perception is itself a case of presence: sight occurs when a lit object faces a sound eye with no veil between them.

Certainty, doubt and the limits of knowledgeYes

Certainty is attainable. Suhrawardi says he first reached his doctrine by tasting and only then sought proofs for it, so that if the proofs were set aside no doubter could make him doubt it. What is known by presence leaves no gap between knower and known in which error could arise.

Stated in the textyaqīn, dhawq, burhān, mushāhadaDraft — not yet reviewed

The Philosophy of Illumination Introduction

The immunity of knowledge by presence to error is the standard reading (Ha'iri Yazdi, The Principles of Epistemology in Islamic Philosophy, 1992), not a sentence of Suhrawardi's.

Innate knowledgeNo innate contents

The soul has no stock of ideas. It is a light aware of itself as soon as it exists, and that self-awareness is its very being, not something learned; everything else it comes to know by the presence of things to it or by illumination from the lights above it.

Scholarly consensusal-nūr al-isfahbad, al-ʿilm al-ḥuḍūrīDraft — not yet reviewed

The Philosophy of Illumination Part II, Discourse 1 · The Intimations dream-vision of Aristotle

Self-awareness is unacquired and prior to every experience, which borders on `innate-knowledge`; but it is the self's being, not a content stored in it, as with Ibn Sina's primary notions.

TruthNot addressed

Not addressed. No account of what truth is, of statements or of things, is found in the works cited. The nearest thesis, that light is what is manifest in itself and makes other things manifest, answers what is real, not what truth is.

Not coded. Suhrawardi's theory of light as self-manifestation bears on truth only indirectly.

Scholarly consensusDraft — not yet reviewed

Read as a theory of truth, light as manifestation would sit near `being-itself`; that would be Hekmat's construction, not his.

Epistemic justificationKnowledge by presence or identity

Definitions cannot give the essence of a thing, since they define by what is no better known, so knowledge cannot rest on definitions as the Peripatetics hold. The self knows itself by being a light manifest to itself, without any representing form, and things are known when they are present to it with no veil, or when the higher lights are witnessed. Suhrawardi says he first had his doctrine by tasting and only afterwards sought proofs for it, so that proofs, though required, are secondary to witnessing.

Scholarly consensusThe Philosophy of Illumination (1186); The Intimationsishrāq, mushāhada, dhawq, ẓuhūr, ḥuḍūrDraft — not yet reviewed

The Philosophy of Illumination Introduction · The Philosophy of Illumination Part I, Discourse 1 · The Philosophy of Illumination Part II, Discourse 1 · The Intimations dream-vision of Aristotle

The shining of the higher lights on a prepared soul is also `illumination`; it is not coded because what warrants knowledge for Suhrawardi is the presence of the object, of which illumination is one case. The phrase "knowledge by presence" (ʿilm ḥuḍūrī) is the standard later name for his view (Ha'iri Yazdi, The Principles of Epistemology in Islamic Philosophy, 1992).

Axiology

The highest goodContemplation

The soul's good is to free itself from the darkness of the body and return to the world of lights, witnessing them and taking joy in their illumination. Sages who have stripped themselves of the body reach this in part in this life, in experiences of light, and fully after death.

Scholarly consensustajrīd, mushāhada, ladhdha, ʿālam al-nūrDraft — not yet reviewed

The Philosophy of Illumination Part II, Discourse 5 · The Tale of the Western Exile whole work

The basis of moralityNot addressed

Not addressed. He gives no account of what makes an action right. Ethics appears as ascetic discipline and detachment that prepare the soul for illumination, which answers how one comes to know, not what rightness is.

Not coded; ascetic practice in Suhrawardi serves knowledge and the soul's return, not a theory of right action.

Scholarly consensusDraft — not yet reviewed

Virtue and knowledgeNot addressed

Not addressed. He does not ask whether knowing the good is enough to do it. The nearby thesis runs the other way: discursive knowledge without ascetic practice cannot reach the highest knowledge.

Not coded; for Suhrawardi practice is a condition of knowledge, not knowledge a condition of virtue.

Scholarly consensusDraft — not yet reviewed

He asks readers of the Philosophy of Illumination to prepare by a period of ascetic retreat before studying it.

The state and legitimacyRule by the wise (contested reading)

The world is never without a sage versed in both experience and discursive philosophy, and such a sage is God's true vicegerent. When he holds power the age is full of light; when he is hidden, darkness prevails.

Another reading. Corbin (En Islam iranien II, 1971) reads the sage as the hidden spiritual pole of the world, whose rule need not be visible or political; on that reading the passage names no political order.

Contested readingkhalīfat Allāh, al-ḥakīm al-mutaʾallih, riʾāsaDraft — not yet reviewed

The Philosophy of Illumination Introduction

The coding follows Ziai ("The Source and Nature of Authority: A Study of al-Suhrawardi's Illuminationist Political Doctrine", in Butterworth, ed., The Political Aspects of Islamic Philosophy, 1992), who reads the passage as a political doctrine. The sage-ruler is defined by mystical experience joined to philosophy, not by philosophy alone.

Beauty and artBeauty as ascent

In his Persian treatise on love, Beauty, Love and Sorrow are born of the first intellect's knowledge; love is the longing for beauty and, joined with sorrow, the way the soul is drawn back toward its origin.

Scholarly consensusḥusn, ʿishq, ḥuznDraft — not yet reviewed

On the Reality of Love whole work

Art as such is not discussed. His own symbolic tales teach through images, and the world of suspended images makes visions and imaginal forms real (Philosophy of Illumination, Part II); no option names that.

JusticeNot addressed

Not addressed. No held work gives an account of what justice is or what grounds it. The Philosophy of Illumination speaks of the sage as God's vicegerent (a question for axi.legitimacy), and the ethical counsel of the Persian treatises concerns detachment and purification.

Suhrawardi writes nothing on justice as such; his practical teaching serves the soul's return to the light.

Scholarly consensusDraft — not yet reviewed

The Philosophy of Illumination Introduction

The nature of valueOwn position

Own position. Perfection and goodness follow light: a light is more perfect the more intense and unveiled it is, lower lights love and are mastered by higher ones, and darkness is only the absence of light.

Suhrawardi grades all reality as light, from the Light of Lights down to the dim lights of souls; what is more intense in light is more perfect, and the lower is drawn to the higher by love while the higher dominates it. Darkness is no positive principle but the lack of light. In his Persian treatise on love, beauty is the perfection that love longs for.

Scholarly consensusnūr, nūr al-anwār, kamāl, maḥabba, qahr, ẓulma, ḥusn, ʿishqDraft — not yet reviewed

The Philosophy of Illumination Part II, Discourse 1 · The Philosophy of Illumination Part II, Discourse 2 · On the Reality of Love whole work

Convertible-with-being does not fit, because Suhrawardi takes existence to be a mental notion, not something real in things; light does the work being does for Avicenna and Aquinas.

contested reading · open a row for the explanation and its sources

Method روش و شیوه اندیشه‌ورزی فلسفی

Suhrawardi joins discursive proof to "tasting" (dhawq): what the sage first sees by ascetic practice and vision he then seeks to prove, and proof without vision is incomplete. He criticises the Peripatetic theory of definition, rebuilds logic and metaphysics in a language of lights, and reads the ancient sages of Greece and Persia as speaking in symbols.

Posing questions

The introduction to the Philosophy of Illumination says that its contents did not come to him first by thought but by another way, and that he then looked for proofs, so that even without the proofs no doubt would arise about them. Questions are posed for a reader who is both an investigator and a practitioner, and the work ranks sages by their share of each. The central question shifts from what a thing is by definition to how it is manifest, that is, from essence to light and appearing.

The Philosophy of Illumination Introduction · The Philosophy of Illumination Part II, Discourse 1

Arguing and justifying

Suhrawardi uses syllogistic proof and keeps much of Peripatetic logic, which he restates in a shorter form in the first part of the Philosophy of Illumination. But he holds that the deepest knowledge is by presence, as the self knows itself without any representation, and he sets out this knowledge by presence through a dream-vision in which Aristotle teaches him to begin from self-knowledge. Many of his arguments turn on showing that a Peripatetic distinction (existence, unity, necessity) is only a mental consideration with no reality outside the mind.

The Philosophy of Illumination Part I, Discourse 1 · The Intimations dream-vision of Aristotle · The Philosophy of Illumination Part I, Discourse 3

Criticising rival views

His sharpest criticism of the Peripatetics is that their definitions cannot do what they promise: an essential definition would need to list every essential attribute, which no one can know they have done, and what is defined is finally known only through what is seen or already evident. He criticises them for treating mental abstractions as real and for denying the Platonic Forms, which he restores as lords of the species. Ancient sages who seem to disagree are, on his reading, speaking in symbols that cannot be refuted on their surface.

The Philosophy of Illumination Part I, Discourse 1 · The Philosophy of Illumination Part I, Discourse 3 · The Philosophy of Illumination Introduction

Reason, experience and other ways of knowing

Discursive reason (baḥth) and experiential tasting (dhawq) are both needed; the best sage has both, while one who has only argument is a lesser rank. Tasting is won by ascetic practice and the turning away of the soul from the body, and it gives vision of lights directly. Vision and illumination ground even ordinary seeing, which he explains as the soul's illuminative presence to a lit object rather than as the reception of a form.

The Philosophy of Illumination Introduction · The Philosophy of Illumination Part II, Discourse 5 · The Philosophy of Illumination Part I, Discourse 3

Language and style

He writes in several forms: Peripatetic-style treatises in Arabic, the Philosophy of Illumination with its own vocabulary of lights and darknesses, and short Persian and Arabic tales of exile and return in which the soul's journey is told as a story. The tales are meant to be read symbolically, like the sayings of the ancients. He asks that the Philosophy of Illumination be given only to those who have mastered the Peripatetic method and practised asceticism.

The Intimations whole work · The Tale of the Western Exile whole work · On the Reality of Love whole work · The Philosophy of Illumination Part II, Discourse 5

Across the works

ishrāq, dhawq, baḥth, ʿilm ḥuḍūrī, nūr, ramz, iʿtibārāt ʿaqliyya, ḥikmat al-ishrāq, arbāb al-anwāʿ

Arguments

Self-awareness and knowledge by presenceThe self is an immaterial light whose being is its own manifestation, and the model of knowledge is presence, not representation. In the Intimations the argument is put in the mouth of Aristotle, who appears to Suhrawardi in a dream and tells him to begin with knowledge of himself.
  1. 1I am aware of myself, and never absent from myself, even when I attend to nothing of my body.
  2. 2If I knew myself through a form or image of myself, that form would be something in me other than me.
  3. 3To take that form as a form of me, I would already have to know myself; so self-knowledge through a form either runs in a circle or never reaches me.
  4. 4Any form in the mind is universal, however many universals are combined in it, while what I know when I know myself is this one self, which cannot be shared.
  5. 5So I know myself not through a form or an attribute but by my own presence to myself.
  6. 6What is manifest to itself in this way is a light in itself, an immaterial light; nothing bodily is manifest to itself.
  7. ∴The self is an immaterial light whose being is its own manifestation, and the model of knowledge is presence, not representation. In the Intimations the argument is put in the mouth of Aristotle, who appears to Suhrawardi in a dream and tells him to begin with knowledge of himself.

David Hume objects. (Applied; Hume does not discuss Suhrawardi.) When I look into myself I always meet some particular perception and never a self apart from perceptions; there is no impression from which the idea of such a self could come.

Immanuel Kant objects. (Applied; Kant does not discuss Suhrawardi.) The "I" of self-consciousness is a bare representation that accompanies all thought; it gives no intuition of the self, so nothing follows about a simple, immaterial substance.

reductio · The Intimations dream-vision of Aristotle · The Philosophy of Illumination Part II, Discourse 1

Draft — not yet reviewed

The critique of Peripatetic definitionEssential definition as the Peripatetics conceive it cannot be achieved; knowledge rests on what is directly present to the knower, and a definition can only point to things already known in this way.
  1. 1On the Peripatetic view, a definition by genus and differentia makes the essence of the thing defined known.
  2. 2The parts of a definition must be known before the thing defined; but a differentia peculiar to the thing is not known to anyone who does not already know the thing, and defining it in turn starts a regress.
  3. 3Even with every known essential listed, one cannot be sure that none has been left out, so one can never know that a definition is complete.
  4. 4So knowledge cannot begin from definitions; it must end in what is known without them, things perceived or witnessed as they are, such as colours and the self.
  5. ∴Essential definition as the Peripatetics conceive it cannot be achieved; knowledge rests on what is directly present to the knower, and a definition can only point to things already known in this way.

dialectical · The Philosophy of Illumination Part I, Discourse 1

Draft — not yet reviewed

The hierarchy of lightsReality is a single hierarchy of lights differing only in intensity, flowing from the Light of Lights, with bodies as dark barriers at the bottom; among the dominating lights are the lords of the species.
  1. 1Whatever is, is either light, manifest in itself and making other things manifest, or darkness; and either self-subsistent or a state of something else.
  2. 2There are self-subsistent immaterial lights; each human self is one, aware of itself.
  3. 3An immaterial light that depends on something for its being cannot get it from darkness, which is lower than it; it gets it from a light.
  4. 4The series of dependent lights cannot go on without end, so it ends in a light that depends on nothing, the Light of Lights, which is one and simple.
  5. 5From what is one and simple only one thing proceeds directly, so the first effect is a single light.
  6. 6Lights differ from one another not in kind but only in intensity.
  7. 7Each lower light receives illumination from those above it, witnesses and loves them and is mastered by them; from these relations further lights arise, and from their deficiency the dark barriers, the bodies.
  8. ∴Reality is a single hierarchy of lights differing only in intensity, flowing from the Light of Lights, with bodies as dark barriers at the bottom; among the dominating lights are the lords of the species.

Mulla Sadra objects. The grading by intensity is right, but what is graded is existence: light, as what is manifest in itself, is existence itself. Suhrawardi's denial that existence is real cuts the ground from under his own hierarchy.

deductive · The Philosophy of Illumination Part II, Discourse 1 · The Philosophy of Illumination Part II, Discourse 2

Draft — not yet reviewed

Existence as a mental considerationExistence, like unity and possibility, is a consideration of the mind (iʿtibār ʿaqlī) with no counterpart of its own in things; what is real is the thing itself, light or darkness.
  1. 1Suppose existence were something real in things, added to their quiddity.
  2. 2Then existence would itself exist, and so have an existence, and that existence another, without end.
  3. 3An endless series of existences in each thing is impossible.
  4. 4The same reasoning holds for unity, possibility, necessity and the like.
  5. ∴Existence, like unity and possibility, is a consideration of the mind (iʿtibār ʿaqlī) with no counterpart of its own in things; what is real is the thing itself, light or darkness.

Mulla Sadra objects. The regress fails. Existence does not exist through a further existence; it exists by itself, and everything else exists through it, as things are lit by light while light is lit by itself.

reductio · The Philosophy of Illumination Part I, Discourse 3

Draft — not yet reviewed

نور / ظلمةnūr / ẓulma
light · darknessLight is what is manifest in itself and makes other things manifest; darkness is whatever is not. Every reality is a light or a darkness, either self-subsistent or a state of something else, and lights differ from one another only as more or less intense.3 links to other thinkers →
نور الأنوارnūr al-anwār
the Light of LightsThe light that depends on nothing: one, simple, aware of itself and the source of every other light. A series of dependent lights cannot go on without end, so it ends in this light.2 links to other thinkers →
إشراقishrāq
illumination · the rising of lightThe shining of a higher light on a lower one, and the knowledge it gives the receiver, which in turn witnesses (mushāhada) the light above it. Suhrawardi names his philosophy after it and ties it to the wisdom of the ancient Persian and Greek sages.2 links to other thinkers →
العلم الحضوريal-ʿilm al-ḥuḍūrī
knowledge by presenceKnowing a thing by its own presence to the knower, with no form or concept between them. The self's awareness of itself is the model; sight and the soul's knowledge of the higher lights follow it.2 links to other thinkers →
النور الإسفهبدal-nūr al-isfahbad
the commanding light · the human soulThe immaterial light that governs a human body, as a commander governs his troops (isfahbad is a Persian title). It is aware of itself, is tied to its body by love and governance, and longs for the lights above it.1 link to other thinkers →
أرباب الأنواعarbāb al-anwāʿ
lords of the species · the Platonic FormsImmaterial lights, each of which governs one natural species and holds its perfections. Suhrawardi identifies them with Plato's Forms; they are individual lights, not universals said of many.2 links to other thinkers →
اعتبار عقليiʿtibār ʿaqlī
mental consideration · intellectual constructA concept the mind forms about things that has no counterpart of its own in them, such as existence, unity, possibility and necessity. If existence were something in things it would need an existence of its own, without end.2 links to other thinkers →
المثل المعلّقةal-muthul al-muʿallaqa
suspended images · the world of imagesImages that subsist on their own, neither in matter nor in a mind, in a world between bodies and pure lights. Visions, dreams, images in mirrors and the afterlife of souls not yet pure take place there.

Works

How to cite

Hekmat. "Suhrawardi." Draft, awaiting review; last updated 20 October 2026. https://hekmat.local/thinkers/suhrawardi/