[bufferoverflow]

1) Not necessarily work, but something that drives you. A good hobby can be much more fulfilling than the work for money

2) Helping others is another thing that is incredibly rewarding, mentally at least.

[davidjnelson]

If you can mix the two that’s great too. Creating a product and seeing people use it is an amazing feeling. Even if it’s not “perfect” and you’d love to have time to add another 10 features ;-)