"A 'Busy' Trap" is a great article for the NYT by Tim Kreider which everyone should read.

[...] It’s become the default response when you ask anyone how they’re doing: “Busy!” “So busy.” “Crazy busy.” It is, pretty obviously, a boast disguised as a complaint. And the stock response is a kind of congratulation: “That’s a good problem to have,” or “Better than the opposite.”

[...] Busyness serves as a kind of existential reassurance, a hedge against emptiness; obviously your life cannot possibly be silly or trivial or meaningless if you are so busy, completely booked, in demand every hour of the day.

[...] Idleness is not just a vacation, an indulgence or a vice; it is as indispensable to the brain as vitamin D is to the body, and deprived of it we suffer a mental affliction as disfiguring as rickets. The space and quiet that idleness provides is a necessary condition for standing back from life and seeing it whole, for making unexpected connections and waiting for the wild summer lightning strikes of inspiration — it is, paradoxically, necessary to getting any work done.

(via nytimes.com)