"He has this great poetic and fantastic voice and what I love about Van, and what I forget to do sometimes is, well I can tell when Van is just like drifting into sort of a zone he just drifts into a place where the whole world is shut out and you can tell that he's in that spot. It's almost a dream-like, trance-like state, singing sometimes. That's really what music is all about. It's almost a jazz concept if you know what I mean — you just kinda go out and you're just wingin' it and I love that about Van, he will risk that, he will go on and on and on and he won't fade the ending before the magic happens, as it were."
January 1, 1970
https://en.wikiquote.org/wiki/Van_Morrison