Rationality is a method for answering questions, not an answer itself. If you don't have any pressing questions - in other words, you're happy and content - you may not see much use for it yet.
When I first finished reading the sequences, I thought, "Great! Now I'll go through my beliefs and fix all the stupid ones! Okay, what do I believe that's wrong?" My reply: "..." Obviously, it's not that simple - if I knew it was wrong, I wouldn't have believed it in the first place. I could have tried to reevaluate everything I believe from the ground up, but that sounded like a poor effort:reward task. I suspect you feel the same way.
So what am I getting out of Bayesian rationality, the study of biases, and the Less Wrong community?
In addition to all that, I'm updating my beliefs in place. When I learn something that surprises me, I take a closer look at why I believe what I believe, looking for an unfounded assumption that lead to the current error. That's what I suggest for you: don't expect what you've learned here to rewrite your entire worldview, but keep it handy for the next time life asks a Hard Question or throws you an utterly unanticipated datum.
If you are already an atheist that does not believe in ghosts, what can you learn from rationality? I'd love to be wrong about lots of things but my problem is, I think I'm right.
As far as I can tell, none of this reflective thinking has lead to deeper understanding of consciousness. (A subject I wish I wasn't so interested in, because its study seems so futile).
If you feel like it, please tell me about any particular instances where actively working on your own thought processes has lead you to realize you were wrong about something (other than blatantly false things like those I mentioned above) or if the same program lead to any new understanding of consciousness.