As far as I can tell based on the cyclists I've passed, relatively few cyclists ride cross-country alone: the majority are in groups of two. And furthermore, all the solo cyclists I've passed have all been using portable MP3 players to have something to listen to as they ride. I haven't started doing that yet, so the lion's share of every day for the last ten weeks has amounted to one big opportunity for reflection.
I've turned over in my mind, countless times, every major decision, every success, and every failure, looking for lessons or patterns.
But if I had to distill all this down into just one rule to live by, that rule would be: "Always be involved in at least one project that's noble, or at least worthwhile."
When that's the case, not only does life have a sense of forward motion, but it's easier to keep small frustrations in perspective.