Philosophy, as other sciences, evolves through the evolution of the sources of science, namely intellect, imagination, illusion, and sense. The more accurately and deeply human beings can understand intellectual and sensory data and other perceptions, and linked their new achievements to their previous knowledge and scientific forms, a more deeper and accurate understanding will be achieved. Philosophy is no exception to this rule.
Hence, the course of philosophy, whether in the East or in the West, is an evolutionary course. In Islamic philosophy, this course commenced with the translation movement and continued its evolution through entering many topics and issues in the Islamic world by Muslim philosophers and different analyzes of the past. However, at one stage, this evolution flourished in such a way that the orientation in Islamic philosophy changed from the subject to the object and extra-mental world, and based on ontological fundamentality of existence, those problems were resolved that philosophers had not been able to solve and interpret before.