Is there enough?
Feel already full.
One slice of the pie of life feels relaxed and contented. And then there is that other slice, in which we feel driven and stressed. Trying to get pleasures, avoid pains, pile up accomplishments and recognitions, be loved by more people. Lose more weight, try to fill the hole in the heart. Slake the thirst, satisfy the hunger. Strive, strain, press.
This other slice is the conventional strategy for happiness. We pursue it for four reasons.