I edintted my last post, but I shall put it in again:

Religion as a concept. The idea or theory that something or somethings superior are behind the creation or interacting and influencing with us, so on and so forth. "relating to or manifesting faithful devotion to an acknowledged ultimate reality or deity " or "the service and worship of God or the supernatural" or how about "a cause, principle, or system of beliefs held to with ardor and faith" (www.m-w.com)

A concept. Like social structure. or unproven scientific theory.