I agree with the commenter saying it's reminiscent of Alice in Wonderland in a way that makes for such fun, confusing conversation. The librarian says things with such confidence that I'm inclined to believe him, even if I don't truly understand what he's saying myself, and, the more times I play it, the more I come to understand. The line about the player hesitating and then immediately having confidence where the librarian asks why even hesitate if you have confidence - it really stuck in my brain.
Also, Pipo is important, to ME