Drom, Bill,
The Ghost Dance is rarely danced, since the massacre of Big Foot's band at Wounded Knee in 1892. However, the Sun Dance was brought back by Uncle Selo, in 1968, when the Spirits came to him and told him it's history and how to do it. He taught many people how to dance and even run Sun Dances. There are only 56 on the Pine Ridge alone, not counting those done elsewhere.
Book's worth reading are, "Black Elk Speaks" and "The Sacred PIpe, Black Elk's Account of the Seven Sacred Rites of the Oglala Sioux". The first is a biography that was written by John G Neidhart, based on interviews with Black Elk and translated from Lakota by his son Ben Black Elk. According to a friend, Ben junior, it's accurate. So is the other. Both should be available through any reputable book dealer or Amazon.com. We have both.
Sam and I a fortunate in meeting with many Elders and learning from them first hand. I call myself a parrot, for repeating what I've been told by these wonderful men and women. Most will say, "It's sacred,
not secret." I agree with Black Elk in that there
will eventually be a "Rainbow Tribe" as described in his visions and work hard for it. (There! That should keep you busy researching and reading for a while.

)
Regarding reincarnation, yes, we believe in it. However, differently than Buddhists. We believe that a person is brought into this world to say, do or learn something in this life. Once we die, we cross the Star Nation (Milky Way) to the south (hence the term "gone South"), where we meet an old woman at a gate. She's called the White Swan. She will ask us if we've learned, said, and done what we're supposed to in life. If we have, we are permitted into Paradise. If not, we are sent back to relive similar situations in another body, maybe even of the opposite sex, to learn what we've missed.
Please understand, the only one with
ALL of the answers is the Creator. That's why Spirits are sent to this physical world to get answers. Not everyone recognizes that we are sent here for a purpose or what that purpose is. It only took me a bit over thirty years, from the time of my first vision, to understand what my purpose is. That was shown by several dreams and visions within the past three years. The Elders have all agreed with my interpretations of these visions and dreams. So, Sam and I have the Work, as we call it, keeping us busy.
Bill,
Red Earth is a rez in NW Minnesota. We know the Hereditary Chief there. Is that the Red Earth you're talking about?