I love being outside.
I ventured out from under the redwood canopy for a few hours today, felt the sun on my skin, got a little sweat on, hiked some hills that made me proud of the regular exercise I've been putting in, and enjoyed meandering a really lovely, overgrown, occasionally precarious mountain trail with my dogs.
Regaining my physical fitness has been a huge challenge, and the freedom I felt today was the best reward I could imagine. Besides a billion dollars. That would be the best best, but physical stamina and agility are a close second.