Mystery of Austerity in Islamic Mysticism

One of the main conditions to refine one's soul for divine spiritual traveler and followers of mystical revelation and intuition is "soul austerity". Austerity in Islamic mysticism has certain conditions and specifications that the writers seek to reveal. Accordingly, first the word and literary definitions are presented, and then the Koranic verses and stated relations are sought for them to find out the certain degrees and their methodologies and relation with the stages of soul. In the end, object, intention, and obligations of soul are provided.