On Being Religious

The question of religion, in one form or another, has been with us humans for millennia. From primitive tribal ceremonies to highly organized scriptures and theological rule books, up to excruciatingly circumlocutory philosophical treatises, we - Homo sapiens - have attempted to answer the question of religion through ages. Perhaps the most paramount question is whether religion is a real phenomenon that exists outside of us or whether we have invented it. If we have constructed the concept of religion, then our understanding of religion and any action emerging from it would be about us, humans, would it not? If religion is true|something of substance that exists outside and beyond humanity|then we are, as sentient beings with consciousness, mere explorers and we cannot be its inventors, can we? What does this mean? Does this mean there could be no religion without human involvement? Does this mean religion can only manifest itself in a human-centric universe? If so, why is that?