Understanding

So, did you ever just think about the world, the role you play in it, how vast the universe is, and how you are not the only one thinking? I sometimes have these thoughts, and then my mind wanders to places I cannot recall. There is often a point in this thought process, where I feel as though I understand everything. It is the weirdest sensation I have ever felt. It is a feeling of pure joy, understanding, relaxation, and carefree-nes. I still feel as though I have not really described this amazing feeling. Whenever it happens, it lasts only for a split second, and then vanishes. I wish I could feel that way forever. I sometimes think that I am glimpsing heaven, or some sort of divine spark from God. I am actually curious as to weather or not anyone has any idea as to what I am talking about. Maybe its just me, but either way, it happened today and I figured I'd say something about it.