Thankfully once in a while there's nothing on tv, and since I don't have cable, I have to watch public television. One of the best programs is NOVA.
This past week there was an interesting show on Bose-Einstein Condensates. Essentially, the closer you get to absolute zero a new form of matter is created in which individual particles retain their identity but at the same become the same as others. Approaching that point the particles start acting as waves.
Don't ask me to explain it better than that, which I know isn't very good. This site seems to be pretty good. It was all theory until early in 2000 when the first such matter was created. It's rather mind blowing, but the first thing I thought of is how that could relate to the existential question of what all beings are and how they are separate but part of a whole, and whether when we die, our individual selves go back to the whole.