Suhrawardi
Islamic · Middle East · 1154 to 1191
Persian thinker who founded the Illuminationist school. It says knowledge comes through inner light as well as argument.
What it is
Suhrawardi was a Persian philosopher who lived from 1154 to about 1191. Trained in the philosophy of Avicenna, he became the founder of the Illuminationist school, and is known as the Master of Illumination.
He wrote a Platonic criticism of the dominant Avicennan philosophy of his time, in logic, physics, knowledge, psychology and metaphysics. His main work is The Philosophy of Illumination, finished in 1186. He was executed on a charge of heresy, though the accounts of his death differ.
The main ideas
- Reality as light. He described the world as made of light in different degrees of intensity, flowing down from a first source, the Light of Lights, which is God.
- Knowledge by presence. Alongside reasoning, he held that we can know things directly, through a kind of immediate awareness he called presential knowledge, close to mystical vision.
- A criticism of Avicenna. He rejected the Avicennan way of defining things and its account of physical bodies, and offered a different logic and physics.
- Ancient Persian wisdom. He saw himself as reviving an ancient tradition of Persian wisdom, and used Zoroastrian terms and symbols in his writing.
What it looks like in practice
Picture someone who has read many arguments about what a feeling like peace is, and then one evening sits quietly and simply knows it. Suhrawardi would say that this direct awareness is a kind of knowledge, and that spiritual practice prepares a person for it. The example is not an argument against reasoning; it is a reminder that for him reasoning and direct awareness were meant to work together, each checking the other. This is an illustration of the idea, not a quotation.
Books and moments
- The Philosophy of Illumination is his main work, completed in 1186.
- His devotional and symbolic writings include prayers and visionary tales.
- Henry Corbin edited and published his works in the twentieth century, which revived interest in him in the West.
Questions and criticism
- Is knowledge by presence a form of reasoning or a vision? Scholars still ask how much of his thought is argument and how much is mystical experience.
- Who was he, historically? Medieval biographers stress his mystical side and wondrous deeds, which makes it hard to separate the philosopher from the legend.
- Was the Avicennan criticism justified? Later thinkers took sides on whether his new logic and physics improved on Avicenna.
Close neighbours
He reacted against Avicenna, and Mulla Sadra later drew on his Illuminationist ideas. The pages on Ibn Sina and Mulla Sadra show the thread.
Written by epchē in our own words, and checked against independent sources on 9 October 2026. The sources are listed below.
Who they connect to
Influenced
- Mulla Sadra · Mulla Sadra joined Suhrawardi's illumination to Avicenna's philosophy.
Influenced by
- Ibn Sina (Avicenna) · Suhrawardi began from Avicenna's system and then criticised it in favour of illumination.
- Plato · Suhrawardi claimed the ancient Greek and Persian sages, Plato among them, as forerunners of his school.
- Plotinus · Suhrawardi's ideas of light flowing out from a source share the pattern, found in Plotinus, of reality in ranked levels. (scholars disagree about this link)
Other Islamic thinkers
- Al-Kindi · 801 to 873
- Al-Razi · 865 to 925
- Al-Farabi · 872 to 950
- Ibn Miskawayh · 932 to 1030
- Ibn Sina (Avicenna) · 980 to 1037
- Al-Ghazali · 1058 to 1111
- Ibn Tufayl · 1105 to 1185
- Averroes (Ibn Rushd) · 1126 to 1198
- Ibn Arabi · 1165 to 1240
- Nasir al-Din al-Tusi · 1201 to 1274
Sources we used
- Suhrawardi · Stanford Encyclopedia of Philosophy, read on 9 October 2026
- Suhrawardi · Wikipedia, read on 9 October 2026