Well, in that specific instance, power would be the person utilizing energies of the sort discussed here on these forums (and researched by robert bruce) in order to do such and such. Power could mean many things, just like energy could. If you need a description for what the "energy" we talk about is, check out Robert Bruce's NEW guide.
Power, as Yosso said, could be an ability, or it could be the means by which someone expresses an ability, i.e. subtle energy or chi. You have no hope of finding a single definition.
Power, as Yosso said, could be an ability, or it could be the means by which someone expresses an ability, i.e. subtle energy or chi. You have no hope of finding a single definition.