I can't "meet with the king" correctly. I stood at the castle entrance, closed my eyes, and walked to the right. I know that the statue somehow stops me from teleporting as long as I keep walking into it, but what else do I have to do? Memorize the pillars in the castle as I can jump over them perfectly?
EDIT: Oh, turns out that I need the whole crown. Now, if only I could find that last thorn...