The first noble truth is that life is dukkha
So desiring, craving, or Taṇhā
are the source of this suffering. So far this is all intelligible.
Where I get confused is the third noble truth. If craving results in suffering, to end suffering (through fourth noble truth) you have to deal with craving, no?
But how do you do anything without desire? You wake up in the morning and you crave food. You want to get up and go do things. You want to learn things, make the world a better place, meditate, or any number of other things.
It seems like if you got beyond craving, you would contentedly waste away. And to even get there in the first place, you'd surely have to desire
to follow the eightfold path. This seems paradoxical, and clearly Buddhists do not simply sit around doing nothing. So how does one act without desire? What else is there to act on?