Continuation:
According to this concept, as well as Nasreddin Tusi as its supporter, the reason for the existence of the surrounding world, nature and thinking, all other beings, is the necessary being. This is called necessity. The necessary being is the initial beginning, and its creator and influencer do not exist.
As a result of the creation of all other beings by this necessary being, a possible being emerges. Thus, the formation of a necessary being is in itself.
Source used:
http://www.anl.az/down/meqale/palitra/2019/mart/01.htm