Tazkiyat Al-Nafs is a process of purifying the human soul that needs to be completed in order to return it to its origin which is pure and clean from impurities and spiritual pollution. The human soul is originally based on a clean instinct (nature) with divine knowledge, confidence, and the nature of glory.
But certain influences have polluted this clean instinct until it becomes dirty and needs to be cleaned again. The apostles were sent, among other things, to perform the task of purifying the human soul and returning it to this original instinct. It is part of the main apostolic task. This writing will explain some aspects of the human soul and its purification process that allows it to return to its origin.