I mean, I don't know much more than that, we... we don't really use these where I'm from but I had to read about it in a book.

[ Muggle Studies. The bane of his very existence. ]

But yeah, the light puts the picture there. Er... like, you know. Light through windows -- shadows and all. Stained glass, maybe?

[ A shot in the dark, but maybe she'll understand that? ]