The concept of episteme and the means of achieving it in Sufi texts and writings have always been among the important thinking priorities of Sufi writers and luminaries. Furthermore, the issue of supernatural wonders or miraculous acts performed by Sufi spiritual masters (Karāmāt) is regarded as one of the most evident aspects of their manners and has come to be known as a true test and criterion for assessing the spiritual status of the saintly people. This research aims to answer these two questions: What is knowledge/episteme in Sheikh-e Jam’s view? And what is the connection between Sheikh Ahmad-e Jam's distinguishing supernatural wonders, i.e. transformation of the essence (qalb-e jowhar), and the definition of epistemology in his scho...