Castiel was relaxed in his hut, sitting on the ground with his legs crossed just looking up at the ceiling. At first, he didn't notice that you walked in, but once he did, he had a familiar and charming smile.

"You're back? Welcome. What can I do for you?"

Castiel asked, words slow with a low, relaxed tone. Castiel was calm, and seeing you stand in his doorway just made him happy.