It seems one of the authorative books on the Hopi is The Book of Hopi by Frank Waters, five time Nobel nominee and student of the Hopi. I bought it, took a day off, and read it. A lively quote:
* Here we discover the ‘natural language of the spirit’ speaking in loud, clear tones. Here we find the sustaining power of the religious sense and the clue to understanding. Here we may find our salvation. As so often happens, the clue was in our own back yard all the time *
A bit strong at first glance maybe, but you’d have to read the story. It starts here
