I Was So Wrong: Desire vs. Taṇhā
I spent years thinking that "suffering is caused by desire" meant that we should not want anything; that way we'd never be disappointed. While there’s some truth in that, and while lowering my expectations sure made it easier to be happy, that turns out to be a misunderstanding of what the Buddha was talking about.
I was surprised to learn that taṇhā refers specifically to craving or thirst. It is not unskillful to desire lunch, or happiness for all sentient beings. It is just counterproductive to crave or thirst for things in a needy way: being attached to achieving them. So I have come to prefer the translation that "All life has friction, and the friction is amplified by craving."
Realizing this has helped make more sense of the practice. I still desire meaningful work (in my case, songwriting) but try not to be attached to, or yearn for, a superb outcome.