On Tuesday morning about 5AM, I took my first ambulance ride. Here's the set-up. Sunday night: arrive home from a 12 day trip to Alaska. Was amazing. I understand how small we humans are, how insignificant we are, among the natural world. Major perspective shifts in so many ways. Monday Morning Through MidDay: Work up with a sore back. Figured all of the schlepping of very heave luggage over the last 2 weeks might be the cause. Decided yoga might help. Did yoga. Didn't help. …