You can take solid forms when you choose to, yes? I recall Sorrow sparing a few minutes at the ball to dance with Rosie.

[Solid enough to make that happen, at least.]

Or if you prefer to watch, you would be welcome to join me when I go hunting the cave monsters for dinner. I would be interested in trying to figure out how to adapt combat to an energy being like yourself, though. It would be an interesting challenge for me as a teacher.