For Tyr, "a wave" brought up images of lakes and other bodies of water rather than heat or light, though he could think of heat being like a wave, too. (More so than a ray of light, at least.) He thought he understood what she was saying, at least, even though he didn't really understand it fully yet.

"And they can all be contained? Like what you did..."

It seemed like the non-solid mana was in her blastia at least.