Believing in the world of Mesal has always been relevant in the beliefs of the illuminationis ts (ishrāq). This world has proximity to the world of Barzakh in the viewpoints of Muslims as the layers of the spiritual unconscious. Therefore, it’s borne results in the ideology of philosopher’s line Mulla Sadra in the Safavid era. Since architecture has always been a language for the values of its time, especially the unconscious of the society, to find out how and if the world of Mesal is manifes ted in the Safavid architecture, this writing is s tudying this case in the architecture of this era. Using the descriptive-analytical method, the present s tudy has s tudied the ornaments of Isfahan’s Imam Mosque to evaluate its conformity with the world of Mesal in the Muslims’ beliefs. The descriptive-analytical research method and information-gathering are through the library and observational sources. It’s concluded that the ornaments of Isfahan’s Imam Mosque could be the manifes tation of the details of the Muslims’ beliefs and spiritual subconscious in the Safavid era in Iran, especially Isfahan, and the amount and manner of this matter in the of decorative patterns topic, the numbers used in them and then, the colors in the architectural ornament have been s tudied.
