Movies, book, culture, and religion. Do they have it right?

We all know what a ghost is. Or a supernatural force, a demon, heaven, hell, the ghost plain, etc. Or do we?
Does anyone ever think what if things are completely NOT what we think? Wonder if we have everything completely and utterly wrong... like... not even in the ballpark. What if all these things really ARE 100% real but also 100% nothing like we can imagine or understand? Thoughts?