Though I disagree with Shaker and Rhiannon.on this because it is another thesis built the idea that religion is in some form external from humanity.
I'm not going to speak for Rhi because I don't speak for others; I can only speak for myself. I don't think we're as far apart on this issue as you may think, NS. I don't believe that religious belief is somehow external to humanity; I believe that is absolutely, entirely, inescapably and intrinsically internal to humanity - but that said, the contents of religious beliefs (in theistic terms, gods) are
believed to be external to humanity. I have no belief any any gods and so regard belief in such thing as internal to certain human brains, belonging to them and them alone; however it appears to be the case that such believers not only believe (for themselves) but want others to believe that their gods are somehow external and objective facts.
I don't mean to say that I think that god-believers consider their gods to be objective, physical states of affairs to be found as physical objects in the cosmos as are the planet Jupiter and the M42 galaxy. That would be ridiculous. Almost nobody, anywhere thinks of their God in such concrete, physical terms anymore (with the possible exception of Mormons). I mean to say that, based on what I have read and seen of a great many various theists talking about their gods over very many years, they like to see their own interpretation of a god as a brute fact, a concrete thing whose wishes, wills, desires and aversions are - mark you well; this is the important bit - binding upon all others including those who do not believe in that entity in any way whatsoever.