Good question. What I think I understand is particularly what you are asking about. Or more specifically: why you're asking it. There are indeed a vast amount of things to know. Some things are factual, objective, and scientific. And some are abstract, subjective, and emotional. Both types of things are great. The most important thing that I know is that everyone always has some of this knowledge to offer. Learning is as easy as asking the exact question that you're asking right now. I think I understand the importance of such a question. It's a beautiful question because you can ask any person and you'll almost certainly receive a different answer than the last time that you asked. So my question is, what do you understand about life, Formerly_Me?