There's usually no particular precedent or reason for times when I feel satisfied. Sometimes things just come into place and life feels right, cozy. Take earlier tonight - I randomly decided to go for a walk in the 25 degree weather, and everything just felt serene. I wrote random illegible messages in the snow, which shone from the distant lights, then wound up in Collegetown where a British-Jewish (complete with beard and Jew-hat) man gave me a free menorah and candles, and we discussed his beliefs and general religion/spirituality for about half an hour. This is always good for me, because I've caught myself becoming increasingly closed-minded when it comes to religious people, not necessarily dismissive, but I feel like I've been a victim of zealotry and bigotry a few times in my life and that has negatively reinforced my idea that being religious must mean being limited in thinking in some way. Really, though, an open-minded person is an open-minded person regardless of beliefs. It's just a different way of thinking. Spirituality is fascinating.
Anyway, back to the topic - I think the time I was most satisfied with my life was once at home when I had been reading, then slept for 12 hours, had fantastic magical dreams I didn't remember, and just loved being alive.
Edit: May it also be noted that immediately after the encounter with the Jewish man I ran into a random very drunk guy who unblinkingly creepily stared at me, so I smiled and said "hi" and he slurredly responded either with "good whore" or "great menorah" then ran off. I'm gonna assume the latter.