Where does the fantasy come from? I'd rather say that fantasy proper is always post-hoc referential to reality in some form. So, the crossroads one minute away from you. I have no idea about that at all. So, lets say we begin with this landmark reference to shared experience. And we create a sound for that, for reference so that we can meet there. THE crossroads -- then though, we must move from "the" to "a". Rather than suggest a universe feature, I'd rather say that a, refers back to the. The difference is though, remove enough of the reference, and I only have access to "a", and this is truly where fantasy begins, and reality gets lost.

No amount of construction, representation, recreation of a crossroads will ever get me back to the crossroads. I die of thirst next to a fresh water lake, because there is no coca cola in sight. I cannot bridge the gap, that water is coca cola, because I am moving from fantasy to reality, as you suggest, rather than the inverse. I learned everything I know from books, written by people that learned everything they know from books.

References of references, that never reference reality. Rather, unreality theropy wishes to make reality resemble a symbol, which originally itself was designed to reference reality, and how it does so is entirely unclear, and not generalisable itself. Only the symbol is generalisable.