Not just specific to crossfit. Why I work out in general. crossfit is a whole different kind of fitness, and so addictive, but i know my limits and i don't try and defy them, or push myself to the point of injury or over exhaustion.
I am a Nurse, not because of the pay; because I love to help and "nurse" the sick. When I wake up I don't say "I have to go to work to day". Instead I say "I get to go to work today". It is an honor to help and serve my patients.