This pretty amazing video appeared on my YT feed as a perfect supplement to the review I have linked above several days ago, taking the Poem of Everyone's Soul, the last program of the show, as a starting point for analysis. The video shows how in this program, before skating through each of the doors put on ice, Yuzu does a little gesture or a single element pointing to one of the programs from the show, a part of the story he's just told, that this particular door is a symbol of.
I don't know how accurate it is but it is really beautiful, deeply symbolic, and left me deeply in awe of how precise, thoughtful and well-knit to every little tiny detail this show is (a quality that is quite characteristic of Yuzu shows by now).