Sufi psychology is a new area of research dealing with the attitude and the behavior of the sufis. While studying the developments of human psychology focusing on human attitudes and behavior as well as their origins in the human body, we had the opportunity to study those of the sufi from a psychological perspective. When it comes to modern psychology, we studied the integrity of the self, also known as 'self realization' by observing the characteristics of someone who has attained a certain degree of perfection, in addition to this we have worked on certain methods and theories pertaining to the development of the personality. Sufism has built its own theory of the personality based on its own methods which aim at studying the basic characteristics of the spiritual evolution of the human being. Modern psychology also examines pathological human behavior and comes up with adequate therapies so as to readjust these behaviors accordingly. Likewise, sufism has an interest in inadequate human behavior - in the words of sufism 'the vices of the soul' - it also aims at readjusting these types of behavior but from a spiritual point of view. In these writings, we will be studying the transmutation of the sufi self according to the classical era sufi Ebu'lHasan al-Harakani and we will examine the two aspects of that transmutation: the psychological one and the psycho-spiritual one.