A fantastic author on this topic (he's really just a fabulous writer) is Ocha'ni Lele. I found him while working at his book publisher and have continued to read his work even though I'm not a Lucumi practitioner. His book on sacrificial ceremonies describes the whole purpose of the ritual so, so well.
@cocokins I can't agree with you enough on this on both points!!!
Another Radiohead option: Pyramid Song.
@Curiouser and curiouser I'm so glad someone else organizes the items in their cart by type. It drives my husband crazy!
I make jazz hands when I'm telling someone something exciting so often that my coworkers started just calling them "Erica hands".