Analytical-Critical Approach to the Ideas of Ibn Sina on the "Power of Illusion"

The faculty of Delusion or Vahm has several aspects like proving it, being independent from other faculties of rational soul, how delusional concepts were comprehended and understood the concepts, material or immateriality of this faculty, and the conjunction of it to the practical and theoretical reason. In this research, Ibn Sina’s views in theses aspects are studied and explained. In this regard, it has been proved that the proving of this faculty, independency of it from reason and rational soul, and materiality of it are incorrect even according to the philosophy of Avicenna himself. The two demonstrations that proving the independency of faculties of rational soul have no indication for independency of delusion and changelessness of the concepts which this faculty comprehend are the sign of it’s immateriality and their subject.