If you actually can inspect it, it is deeply inscrutable that we ever feel identified with our thoughts. I mean, how is it that we could be a thought? A thought just arises and passes away. And when you inspect it, when you go to inspect it, it unravels. It's the least substantial possible thing. But yet, it could be a thought of self-hatred. It could be a thought, that unrecognized, totally defines your mood.