I think walking away with a smile on our faces, and even laughing out loud while doing it beings a different definition to power.
I'll try to find it but a YiQuan teacher mentions much the same thing that Tohei did. THat when you practice this way and the opponent feel himself sent away, it leaves a look of surprise and wonder on their faces.
It sort of makes Ueshiba's model of making peace out of an enemy come to life again.
There is nothing quite like hitting the floor and just busting out with laughter wondering how it happened. I think for many of us in aikido, regardless of background or "style", this is a huge part of what keeps us coming back for more. We know it's not "magical" but it still FEELS like it is when it happens.