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In the words of the poets, there are motifs that in addition to being frequent and extensive are linked to the knowledge and epistemology of the narrator. Among them, the "tree motif" in NaserKhosrow’s poetry and prose with a frequency of at least 177 times is one of the central themes and images which are rooted in the poet’s intellectual and religious beliefs. NaserKhosrowhas often used this motif in two major ways: First as an image of the universe in the form of a tree with human beings as its fruits, and second as an image of a human being in the form of a tree with his moral traits as the sweet and valuable fruits as well as his immoral traits as bitter and harmfulfruits.In the present study, in addition to investigating the background and origin of this theme, its different aspects have been analyzed. The results indicate the special and unique importance of tree in the poet’s mind and imagination and also the impact of Islamic teachings and Ismaili works and theories on the poet increatingsuch themes and images.

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Naser Khosrow’s intellectual system has been formed on the basis of his deep knowledge of religions, nations and ideologies, his faith inIsmailism, as well asthe cosmological and anthropological issues;and this coherent system of thought has had a decisive and visible effect on other aspects of his speech, including imagery.One of the important centers of artistic images in his works is the reflection on the dual spiritual and physical nature of man. Based on a descriptive-analytical method, this study seeks to search for the roots and sources of the artistic images of the body and soul in the works of Naser Khosrow as well as theircriticism and analysis.The origin of body and soul, the philosophy of the soul belonging to the body, the nature and destiny of body and soul and the different needs of these two are the most important reasons for creating numerous images of body and soul in Naser Khosrow’s works.Several other important clusters of images of body and soul are formed around concepts such as house and landlord, servant and master, ship and shipmaster, shirt, pearl and shell, mine and gem, prison and prisoner, and book and tree, showing body and soul relations from different perspectives.The results of the study show that the roots and sources of many images of body and soul in Nasser Khosrow’s works have been mentioned in previous theological and philosophical sources, including ancient Greek, Gnostic, Indian, Iranian, and Islamic works.