Sorry to jump in the conversation so late, but I agree that it's something that everyone should enjoyfully experience at least once. I have a friend who, on his first time, decided to smoke a whole gram by himself. Very bad idea. Now he's repulsed by it, which is funny, because he gets drunk every night. Like AlwaysOnTime said, it is very difficult to explain. I can't vouch for it being a more youthful self because I'm a week shy of being 21. However, I'd say that it gives you a more acute understanding of your surroundings. So, while you as a whole may not understand what is going on all around you, what your eyes/thoughts are focused on leads to a world of thought and imagination. Where people go wrong with it is that they confuse being high with their reality (kind of like in Inception). It's all about appreciating it for what it is, and realizing that sober life is just as awesome.
I just saw this! Happy birthday! Try to get out of your job and move to Colorado this year.
Oh, happy early birthday! By the way, this is a great page I found some time ago that tries to describe what being high feels like (and gets pretty close, I think). Definitely take a look! Link