I think some people refer to willpower when they talk about the human ability to realize that something was different that he expected and act accordingly.

Maybe others have different definitions of willpower.

But willpower in the sense you use it is a very particular word used in some particular context in western treatments of the self (which we all know is our main characteristic, to develop hundred of concepts and ideas about the self).

A pleasure

I therefore claim to show, not how men think in myths, but how myths operate in men's minds without their being aware of the fact. Levi-Strauss, Claude