If you believe particularly in reincarnation we have been a part of every culture at some point in time. I have dreams of shamans often, some are white people some Asian and some even natives. Artists are more open to visions than anyone else, but not only.
Native Americans have visions and dreams and that is how they discover the world of the spirit.
Before Judeo-Christian religion, if you read history books, earth religions existed everywhere in the world. There were shamans in Europe, Asia and Africa.
When I began painting bird women I had actually not read very much about Native American beliefs. I saw them in my dreams and then discovered that people had been carving bird women symbols in Poland and Africa and elsewhere. There was a large exhibition of the original bird people carvings in NEW York when i was there.
If spirit wants to communicate with someone it will be with the people who are open to it and not necessarily a particular culture.
Yes we need to understand earth religions in order to appreciate Nature again and life in general as Christianity made us divorced from nature and as a result we have devastated and exploited the earth without mercy.
So lets stop exploiting each other and carving out what is mine and what isn’t and realize the earth is ours. Lets learn from each other with appreciation and a leg up for those who need it.