Kierkegaard, Kant, and the Unknown Kingdom

A major hurdle for beginning philosophy students is how do get from the world as it seems to me to the world as it is in itself. There is a boundry here that we can't cross, says Kant. Hence, we can't know anything about the world in itself, only the world as it seems to me.

Kierkegaard imagines that there are 2 kingdoms: one of language and one of music: the point is that his metaphor can apply to Kant, since we can make the kingdoms represent the world as it seems to me, and the world as it is. Here's the quote:

"If I imagined two kingdoms bordering each other, one of which I knew rather well and the other not at all, and if however much I desired it I were not allowed to enter the Unknown Kingdom, I would still be able to form some idea of it. I would go to the border of the kingdom known to me and follow it all the way, and in doing so I would by my movements describe the outline of that unknown land and thus have a general idea of it, although I had never set foot in it. And if this were a labor that occupied me very much, if I were unflagglingly scrupulous, it presumably would sometimes happen that as I stood with sadness at the border of my kingdom and gazed longingly in that unknown country that was so near and yet so far, I would be granted an occasional little disclosure."

It is interesting to think about what would happen if we got news from the unknown kingdom 'from that kingdom'. Sure, it can come only when we know in our bones that entering the unknown kingdom is out of the question. But what if one of its denizens visited us? Could news from this kingdom - or even the unknown kingdom's borders - be music, or miracles, or even embodied in Christ Himself?