It’s an illusion that there is a centre to consciousness. It’s a subjective feeling that you are located somewhere up there behind your face looking out into the world, authoring your thoughts and making decisions.

A complex interaction between your unique memories, your unique biological composition, your past and present environments, and the ongoing neurological processes that experience and interpret them.

A fleeting subjective experience in an ocean of possible experiences.

Everything is explained by one of our gods: https://neopythonic.blogspot.com/2008/10/why-explicit-self-has-to-stay.html