This was magnificent. I came simply for the quote, which I will probably butcher if I try to remember exactly, but I became so enthralled in the story ! I feel how much also the motto tied into the story and how the Prof would simply tune in to what he already knew, his "Dance" and from that place he was a master in his teachings.
I honestly feel inspired to write more in these ways since poetry is my main muse.... But I want to expand into reference prose (If that's what this is called?)
And I think you do know - in relation to the last sentence- that his teaching was what was keeping his purpose alive and well. Cheers!