To view the game from the inside is to adopt a single point of view, to identify with the interests of a particular playing piece in competition with others. In the game of life I believe myself to be this body, not that one, and certainly not all bodies. I agree to enter the game by becoming not only a player but a playing piece , and I become such by agreeing to the game. The X-Man becomes his exoskeletal space suit. Once incarnated, I forfeit this freedom by becoming, for all practical purposes, the body.
Incarnation is a relationship of the subject to experience.
But the subject is a point of view, not an entity. There is a particular type of consciousness associated with the body, that has to do with adopting its point of view and interests as a player in the game of survival. The name given to this consciousness, in various spiritual traditions, is ego. The sense is different than in western psychology, where the ego is considered the part of the individual psyche whose job it is to juggle the internal demands of the organism with those of the socially constructed conscience and those of the environment. In other words, in western psychology the ego is part of the plumbing of a human being, who is already assumed to be a body.