To me the purpose of life is growth in consciousness. To a materialist this may be seen as a meaningless statement. Consciousness doesn't grow, only forms do that. But, no, the body can remain the same size or even shrink while the consciousness grows with every experience we have!
What is the goal of this growth in consciousness? More growth in consciousness! Perhaps until we have reached the state of cosmic consciousness as a steady state! And then? A movement back into a more specific focused form of consciousness and then more growth again? Much like the boom bust model of the universe that some physicists hold!