User blog comment:ImperiexSeed/Castiel's shifting of Sam's mental problems made no sense!/@comment-4970348-20120403024530/@comment-3481504-20120403224024

Truthfully, nowhere. But hallucination is a disorder in the brain, a human thing. And angels don't do that.

To answer your question, probably at least once more...I hope. We'll just have to wait and see.