Nothing, if you're doing it right:
I love to hear of people devoting their lives to pursuits that sound dull to me, for I know that their enthusiasm is right and my boredom is wrong, and I am happy for the rebuke. I convert my specific boredoms into general fascination with passion's possibilities, reflecting that, under altered alignments of choice and chance, I might have given my days to different causes. There is more worth loving than we have strength to love. A foolish trope of modernity is that experience leads to disenchantment and ennui. Boredom with life does not result from exhausting life's riches, but from skimming them.
(Photo via fffound!)
The Dish 