User blog comment:Silver-Haired Seireitou/Revisiting Hakuda/@comment-1493741-20150516093556/@comment-24384232-20150516175906

Reiryoku and Reiatsu are essentially the same thing, its just that Reiatsu is simply the "effect" of your reiryoku being released and its interaction with the spiritual and physical environment. It represents the raw nature of what your power is, as seen through the lens of the world (spiritual or physical). I tend to defer to this mindset because it helps me to more easily define how my abilities work and their function. In this way, you can define how your character is using his power, whether he is interally molding his reiryoku or releasing his power and then manipulating that reiatsu into a certain effect.