Here we see Andreas in one of his more unique pastimes, something he calls "Mirage Meditation". It's a mental exercise he perfected a long time ago, but it's very tricky.

It involves first casting an illusion spell that creates a fluctuating light pattern. This requires concentration to hold together and shape into what he wants it to look like. Then, concentrating on holding the spell, he slowly sinks deeper into meditation, shutting out his conscious mind.

Trick is, if he slips too deep, he loses the concentration needed to keep the spell running. So it's a bit of tug-o-war between parts of his brain. But at this point he's mastered the technique, and it's given him some... interesting abilities.

Only possible downside is, that deep in meditation, his subconscious is controlling the illusion, so sometimes it shows flashes of his private thoughts, memories, visions and whatnot. And Andreas is so deep under that he can only rarely see what's happening in front of him. He's aware if the spell is still intact most of the time, but not always what it's showing.

Looks like this is one of those zoning-out moments here.

Artwork by the talented Neodokuro