This was so fucking weird. Gorgeous mind-screw. There is no way to really understand unless you walk the fine edge between paying close attention and just letting it flow. I can't even give a proper summary without diving into spoiler territory.
Dream-like and powerful in imagery, heavy on symbol, it draws a lot on traditional narrative devices and gives stark, analytical spins to them, (sometimes to such a violent degree, it becomes surprising or disquieting, and I've done my fair amount of research on the psychology of myth and fairy-tales; that's Valente for you). Monomyth is a concept that comes up a lot. Turing test too, to an ironic (bittersweet, vindictive, awesome) final mention.
It's a slow piece, patchwork style and complex. It demands you to think, about what you are reading and about things like the definition of feelings, of love, of being and self, of likeness and difference, of knowledge against imitation, and where the line is drawn. I had to reassess many of them in my mind as I read, and that's really something.