'Art is the lie that helps us understand the truth.' Picasso
'Being entirely honest with one's self is a good exercise.' Freud
'Ever tried. Ever failed. No matter. Try again. Fail again. Fail better.' Beckett

Every bit of fiction writing is a sort of analogy to the extent that it has any meaning at all to the reader. Making a monomyth is the same idea. Every character worth mentioning ought to be an analogous symbol. There is nothing but the analogy.

?

..well to the extent that's true I've probably lost the original meaning of the word.