I have multiple motivations, depending on whether or not you are looking at long/short term. Long term, I just simply want to be healthy when I get older. I'm 51 and in the best shape of my life and would like to keep it that way. I don't want to become what I call a "potted plant" - if you've ever seen the nurses wheeling the old folks out to a window to "get sun" in a nursing home, you know what I mean. To that end, I run (50 miles a week), and I do bench work (weigh lifting) 3 or 4 times a week - not to bulk up but to maintain and shape. I also hike as frequently as I can with my wife and as soon as the snow begins we are going to take up snow shoeing.
We'd also like to learn rock climbing and take up a martial arts but that's for the future.
In the short term my goals mostly revolve around my running and improving my race times. I set several pr's this year and got my half marathon down to a respectable 6:56 pace which I want to lower further to a 6:45 or better in February.
Nothing happens unless first a dream.
"Only those who will risk going too far can possibly find out how far one can go." – T.S. Eliot
“Do or do not... there is no try.”
“Where does the power come from to see the race to its end? From within."
”Chariots of Fire (1981) – Eric Liddell (Ian Charleson)
Just keep swimming, just keep swimming: