Mystical analasis on Detachment of obligation's and secondary prayers's affects in nearness to God

The Muslim mystics have various conducts based on diversities of states such as "qorbe farzi" and "qorbe nafli". Some of them are nafli and the others are farzi and the others are inclusive of the both, and finally, some of the mystics have the situation of "tamahhoz and tashkik". This is an important difference between two methods that the mystic in "qorbe faraiz" become the description of God, whereas God in second way, become mystic's attribute. Some of mystic emphasis on the option and compulsion as a keywords on excellence of qorbe farzi. They believe that servant of God in his superogatory acts, is like a wage laborer, who has preferred divine servitude over his own desires, but in the obligatory acts, the slave has no right to choose; He is compelled to perform them. In this paper, we centralize on views of Islamic mystics on detachment these approaches and their affects.