The unity of the existence of the system, this is Amir Khusraw Dehlavi, the role of explaining the origin of the unity and the multiplication of the architecture of the mosque of Sheikh Lotfollah Isfahan

Amir Khosrow Dehlavi is undoubtedly the greatest Persian poet of India and one of the sweetest and most powerful Persian poets whose works are understood by the familiar meanings that the lord of love and affection according to his taste and conscience understands. Yaband has been accepted by everyone. The unity of existence as one of the principles of mystical worldview is a subject that Amir Khosrow Dehlavi has addressed in his poems and with the help of allegory language he has expressed the issue of unity of existence and has a comprehensive approach to it. Mystics interpret what they have seen and experienced. Persian poetry has a great capacity to interpret these mystical experiences. Amir Khosrow, having a scientific background on religious sciences and knowledge, and having a delicate poetic taste, has easily..But the unity of existence is the same as monotheism. Considering how to know God, which is purification with simile, as well as the levels of theoretical and practical monotheism, and reaching a level of knowledge that everything is from God and to Him, and considering the relationship between God and the universe, which is not based on causality, but It is based on manifestation, Muslim mystics are aware of the issue of unity of existence and express it with different interpretations. This research seeks to study this issue in the works of this poet in order to discover the elements of unity of existence used in the works of this poet to evaluate them.