I got eager to know about this White Buffalo Calf Woman and googled it. I came to know that she belonged to Lakota (not sure) and she possessed divine magical powers who taught the people about Seven Sacred Rituals. You might have gone through it already. But, I am providing a link to the wikipedia page here. https://en.wikipedia.org/wiki/White_Buffalo_Calf_Woman
I first learned about White Buffalo Calf Woman through a video lesson sponsored by Radiant Rose Academy online. She, through the messenger Usa, talked about the pure hearts of her Lakota people (and the Native American Indians). She explained that alcohol was a plague to her people, as their genetics cannot handle the substance as the white race. She requested that listeners, as members of the I AM race (America, letters juxtaposed) request blessings and Violet Flame to assist Native Americans in overcoming addiction. I did the fiat several days, but am not doing it currently. White Buffalo Calf Woman promised assistance to whoever fulfilled her request. (I'm not consciously aware of receiving her help, but respect her.)
This is not the White Buffalo Calf Woman I am referring to, Marie. What you are referring to seems to be someone who is channeling (?). There is an old Lakota legend from Nicholas Black Elk that explains WBCW and the sacred rituals. Thank you.