The movement of energy presents a necessity and an inevitability that must be reckoned with, not negotiated with. Where there is no energy, there is death, and where there is too much energy, there is also death, and so on.
This is most clearly perceived in the body and in the emotions: to the rational mind, death may be an abstraction, but there is no mistaking pain, or dread, or terror. With an abundance of energy, something like the mind is allowed maneuverability within an enlarged field of inevitability.
The temporal and spacial abundance of that range of energetic frequency that allows for life provides the basis for manipulation, choice, and maneuverability. With enough power that is satisfactorily developed over a long enough time, even greater concentrations of energy can be set against lower concentrations to produce desired effects, such as maintaining a fire between walls of stone.
So power is not just concentrated energy, but manipulations of different gradations of concentrated energy to maintain that stable frequency of life-giving energy. And with the abundance of power, where it is at least distributed with a reasonable evenness, things like our contemporary understanding of "freedom" and "choice" can be perceived to exist and act.