If anything in the universe is sacred or valuable, it’s life itself. We should love our lives deeply. The universe has no other way to understand itself apart from life, and it does so in many different forms. Life gives meaning to the universe; there’s no need for any additional purpose to life. Simply being alive is a complete and fulfilling experience in itself.
Even if someone were to write extensively about economics, as Karl Marx did in Das Kapital, the truth is that, ultimately, the reality of the world is determined not by economics, but in the last instance by genetics.