I’ve thought a good bit about internal and external motivations since my trip to Yosemite.  There’s an echo of that conversation in this recent post by Seth Godin, where he writes about what “fuels” you.  Motivation matters, I think.  But motivation also changes over time.  Sometimes the switch is dramatic and obvious, but other times the change in motivation is subtle and unspoken.  I do think Godin is right:

When we pick our fuel, we pick our companions for the journey ahead.

That’s true on multiple levels, I think.