Hello Aloka, So far the wisest Buddhist concept I have read is the Zen idea of avoiding assumption. Is there a soul? I don't know. Is there a god? It often doesn't seem like it, but I wouldn't declare there is or isn't. I try to avoid speculating such big ideas. I'm simply more interested in trying to understand the things right in front of me in the "here and now".
I believe we exist as a soul, mind/ego, and body.