In this kind of knowledge there is a self-object relation without the interference of a connection with an external object.
Knowledge by presence has characters such as being personal, non-transferable, admitting different levels and development.
[6] Al Farabi is known for his famous Doctrine, namely harmonization of opinions of Aristotle and Plato.
Avicenna developed the notion of knowledge by presence in the argument of the floating man.
[6] On one hand Surevardi criticized Avicenna's theory of knowledge which is based on the important roles of definitions.
On the other hand Suhrevardi introduced innate knowledge in which awareness and consciousness are basic.