The relationship between mysticism and Iranian architecture has always been one of the important topics in architectural research. In this study, an attempt has been made to focus on the insight of Iranian architects from a mystical perspective. In other words, the architect is not only seen as a manifestation of the principles of mystical wisdom in space, but also as a seeker who expresses their mystical experiences through their work, is analyzed and examined. The statement of the issue in this research is divided into two main sections; the first part is related to methodology and the second part is related to exploring the relationship between mysticism and Iranian architecture. This study, in two main sections, first explains the mystical methodology for analyzing and examining Iranian architecture, and then explores the relationship between mystical principles and the architecture of the Sheikh Ahmad Jami mausoleum. The aim of this research is firstly to achieve a mystical method for examining Iranian architecture and secondly to interpret Iranian architecture (Sheikh Ahmad Jami mausoleum) from a mystical perspective. In the field of research methodology, the methodology based on the thoughts of Sheikh Jami and its relation to mystical methodology is discussed. After that, attention is paid to discovering the relationship between the mystical insight of architects and the architectural patterns used in the Sheikh Ahmad Jami mausoleum. Finally, in seven sections, mystical architectural patterns are explained and the results of the analyses show that these patterns have been used in the formation of the architecture of the Sheikh Ahmad Jami complex.