According to the beliefs of Fiqh-E-Jaferia....
A seminal work on the nature of the mystical tradition in Islam - referred to as gnosticism here - this book vividly illustrates the limitations of rational methods in apprehending reality as such.  By exposing the vulnerability of all mediate forms of knowledge to error, the author underlines the supremacy of the immediate methods of direct vision and spiritual enlightenment.  He then examies the life of Imam Ali ibn Abi Talib, the spiritual authority par excellence after Prophet Muhammad and shows how it was thoroughly imbued with gnosis-both in perspective as well as in practice.