Running into someone I know who is trusted and just as deep and intelligent as I am and knowing I don't have to filter or simplify- just talk. And for the first time in months we just stand there and talk about all things deep and meaningful to us, or even just recent things that have made a big impact. Wonderful conversation and then leaving it cherishing all the words spoken and creating an even stronger bond with that person. They suddenly have more importance to you, but not on an insensitive level.
This rarely happens to me, in the six or seven times it has, I walk around feeling much better a few days, even.