Maybe it is because I am so aware that I don't have that much longer to live? Perhaps, I don't want to spend precious and depleting time getting over some injury? Perhaps it's something like Thoreau wrote about when he left Walden. He says something to the effect that he left the woods for a good reason, as he went there and had other lives to live and had spent enough time on this one. My goodness, but I have spent a lot of time on this one. Is it enough?
This is where the rubber meets the road: Is it enough? At times like this year, mostly recovering from injuries, it certainly seems so. Surely, after all I have done in endurance sports, I don't have anything to prove - or do I?
Perhaps I just need to prove I still can. Perhaps proving I still can that helps hold the life door shut and not let feeling old get in. Maybe there are things to yet prove. Perhaps there are mountains, though different mountains now, to climb?