We all have rituals in our lives; we have simply forgotten that in our original way of living on the earth, these rituals were sacred, not secular. These rituals were designed to remind us over and over and over again of our true relationship to life: that of a grateful, amazed supplicant at the feet of Mystery.
Everything is here for the same reason, for manifestation and celebration. But the humans articulate this. The others cannot articulate it reflectively. They can be a manifestation, but they cannot reflect on that. Humans can, therefore our role is to be spokespersons for the universe and to appreciate the universe as the context in which the Divine and human meet.