Getting rid of Satan's intrusion, which is a preliminary step to sincerity, cannot really be brought about, unless the sālik is in quest of Allah in his sulūk, and tread upon his selfishness and self-conceit, which are the origin of all evils and the inner diseases. This, in its full meaning, is not possible except by the Perfect Man, or, rather, by the sincere holy men [awliyā'] ('a).
But the sālik must not despair of the inner kindness of Allah, because to despair of Allah's mercy is the beginning of all coldnesses and weaknesses, and it is one of the great sins. That which is possible for the common people, too, is the delight of eyes of “the people of knowledge” [ahl-i ma‛rifat].
So, it is a must for the sālik on the road to the other world to act very seriously to rid his knowledge [ma‛ārif] and rites [manāsik] of the intrusion of Satan and the commanding soul [nafs-i ammārah], and to go deep into his doings, quests and desires, with strictness and examination, so as to find out the ultimate objective of his journey, learning the principles of his inner activities and spiritual nutrition.