Explanation of the most consistent pattern of Sadra's existence Gradation with MullaSadra's epistemological foundations based on grounded theory

Gradation of being as one of the basic principles of Sadra's metaphysics has played an important role in refining and explaining the structure of transcendental wisdom and brought requirements and results in the field of ontology and epistemology. Considering that there are different perceptions of Gradation in transcendental theosophy and different conceptual patterns of it can be drawn, which if attributed any of them to Mulla Sadra, his epistemological views will be affected. It is fundamental in nature, explaining the most consistent model of Sadra's Gradation with his epistemological foundations is based on the method of grounded theory. The methodology of the text has descriptive-analytical nature and while using library documents and resources and interviewing several experts, contextual, causal, intervening and epistemological implications of the two models were designed and studied. Samples were selected through purposive sampling and the information obtained was coded and analyzed by using the grounded theory method. Findings showed that the pattern of Gradation in levels and the pattern of Gradation in manifestations, with differences in underlying, causal and intervening factors, have the same epistemological requirements and results.s.