Illuminationism is a doctrine according to which the process of human thought needs to be aided by divine grace. It is the oldest and most influential alternative to naturalism in the theory of mind and epistemology. It was an important feature of ancient Greek philosophy, Neoplatonism, medieval philosophy, and in particular, the Illuminationist school of Islamic philosophy.
“Whoever knows Hikmat (Wisdom), and perserves in thanking and sanctifying the Light of the Lights, will be estowed with royal Kharreh and with luminous Farreh, and—as we have said elsewhere—divine light will further bestow upon him the cloak of royal power and value. Such a person shall then became the natural Ruler of the Universe. He shall be given aid from the High Heavens, and whatever he commands shall be obeyed; and his dreams and inspirations will reach their uppermost, perfect pinnacle.” -Suharwardi Master of Oriental Theosophy, and founder of the ‘Ishraqi’ or School of Illumination.
و هر که حکمت بداند و بر سپاس و تقدیس نور الانوار مداومت نماید، او را خرّه کیانی بدهند و فرّ نورانی ببخشند، و بارقی الاهی او را کسوت هیبت و بهاء بپوشاند و رئیس طبیعی شود عالم را، و او را از عالم اعلا نصرت رسد و سخن او در عالم علوی مسموع باشد، و خواب و الهام او به کمال رسد.»
Acquisition of esoteric knowledge, like the way of all illuminated predecessors, is best learnt through the tutelage of an illuminated master. The first Islamic esoteric school was credited to Shahab Ad Din al Suharwardi, Shaykh al-Ishraq or the “Master of Illumination” whose students studied directly under his tutelage as opposed to self study.