The article examines the interpretation of the image of the great thinker, sheikh, poet Ahmad Yassaviy, a great representative of mystical literature, in fiction. The spiritual world of Yassaviy as a saint and poet is comparatively analyzed on the example of Uzbek and Turkish novels. The qualities inherent in the nature of the creator are studied in the example of the image of the historical figure Yassaviy. In Turkish literature, various creative methods, analytical views on the skills of image creation, style and speech problems based on a comparative analysis of the created Yassaviy image are expressed. In particular, the role of the inner monologue in monologue-memory, monologue-reflection types, the hallucination method of artistic image and the illumination of the creative spirit of dialogues is proved on the basis of examples. Recognizing the role of psychological, sociological methods in the study of the image of the creator, suggestions and conclusions on the principles of the biographical approach are given.