If we have no mind, and no soul, and there is no afterlife and no higher power - what is the purpose of this life?

I am not afraid of a little religious debate.

Besides consuming energy and destroying this planet and nature, every second, and ultimately being food for the worms; bringing more children into this place, abandoning the millions of orphans in need of a home, and ultimately just fertilizing the ground – sounds a bit selfish and horrid to me.

Or is there some higher purpose?