Power is about perception. You can feel it when it is at work, but it is much more difficult to tell who has it at other times. You can feel your hair rise when you pass by a small and obsolete power plant because much of the energy is wasted and that's OK because not much is at stake. But while fishing on a quiet lake, you cannot feel the huge potential of the dam you cannot see.
Don't see people as they want you to see them. See them as they truly are, beyond the power the may exert on their environment, including you. And see yourself as you truly are. We all have power within, not all the same, and not the same capacity to control it.
(answer to the question "WHAT IS THIS THING WE CALL POWER? Does it come from OTHERS or does it come from WITHIN US, as a state of mind?")