Six Buddhist spiritual powers

While putting this website together, I just thumbed through "The Zen Teaching of Bodhidharma", and found this information in an appendix:

"(Spiritual powers) Buddhists recognize six such powers: the ability to see all forms; the ability to hear all sounds; the ability to know the thoughts of others; the ability to know the previous existences of oneself and others; the ability to be anywhere or do anything at will; and the ability to know the end of rebirth."

The interesting thing about Zen and Buddhism is that you'll find statements like this in one book, and nothing at all in another book. I assume this has to do with one's teaching style, or perhaps their school of Zen, but I don't know.