The great secret that all old people share is that you really haven't changed in seventy or eighty years. Your body changes, but you don't change at all.
I think the most important thing in life is self-love, because if you don't have self-love, and respect for everything about your own body, your own soul, your own capsule, then how can you have a healthy relationship with anyone else?
You do not have to be good. You do not have to walk on your knees for a hundred miles through the desert, repenting. You only have to let the soft animal of your body love what it loves.