"Scrawled" on the back of the map is "The journey inward begins.... Etc."
Maybe flip the map over horizontally? Vertically? Both?
Work from there? Could be useless of course.

I'm literally lost with this puzzle. I once checked this puzzle out when it was just a fresh thread but I easily gave up because I was going literally no where. Tried out your suggestion about flipping the map and still not a clue. I guess these things are really not for me.