It's similar to meditation, if you've ever done it.

[See, she's trying to be helpful, even with all of the hand handling. Caren offers him a small shrug, before glancing down at his hand. It might be more difficult because...well, she's used to being in such a state, as part of her priestess duties. It came with surprising ease, though spell casting is a different story.]

What should happen is a manifestation of mana. My alignment is holy; thus the light. Yours might be any of various elements. Fire, air, water, earth. Perhaps others that I am currently unaware of.