It’s good that we never have enough.
“Enough” means “I don’t want any more.” While it’s true we reach this state in specific instances, say having enough steak or sleep, the reason we want to cease is to have more of the next thing.
And there is always a next thing.
We are directional beings. We move, as the arrow of time, always forward. We always seek more, better, upward, inward, new. The form of these desires change. A young boy wants more time before bed, an old man wants bedtime to come sooner. But we are never satisfied. If we were, we’d be in stasis. Human action requires a desire for more.
Even as we decline physically, we are still ever advancing and evolving in our desires. I suspect this continues right on after we pass from this plane. I think reality itself is engineered in an eternal, inexorable pull toward the inexhaustible vastness of God. Always seeking to get closer, becoming new at every step, perpetually in chase, making progress but never arriving at a point of stasis.