Reza Akbari

Mental being has always been an issue of paramount importance and interest to Muslim philosophers. The first philosopher to raise mental being as an independent philosophical case is Fakhr al-din Razi. Others including Khwaje Nassir Tusi, Katebi Qazwini, Taftazani and Mulla Sadra have also used various reasons to prove the existence of mental being. In his famous book of Asfar, Mulla Sadra introduces three philosophical reasons:a) Istibsar i.e. envisaging possible beings which are non-existing as well as impossible beingsb) Celestial revelation; he considers mental being a heart-felt reality revealed to him through inspiration.c) Tanbeeh i.e. envisaging things which have once been possible but are presently impossible such as miracles.