In Thor: Ragnarok when Thor thinks he can't defeat his sister because she's too powerful; especially because he didn't have his hammer. His mind goes to his father in that grassy field, and Oden tells him that his hammer was only to help him focus his power, but it was not the source of his power. At that moment he goes from the Thor we knew up to that point to Crazy-Berserk-Ultra-Unbeatable-Mega-Thor with new power that he never knew he had. It makes me think of a Christian who lives his life with little impact and one day realizes the power he has in the Holy Spirit.