I once trained with a guy who quit bike racing because he said it got in the way of the joy of riding his bike. Writer, photographer and adventurer Derek Grzelewski gave up guiding and found the joy of fly fishing returned like a long-lost friend.
As he relates in his book The Trout Diaries:
"When you turn your passion into a business, begin peddling the very thing that you cherish, it's like sending your loved one into a ring for a prize fight - she's bound to take a few hits. She might lose, even get knocked out. Mine was often decked, groggily listening to the KO countdown."
LINK (Via: Stuff)