The oral tradition simply has not said it to the people doing the searching.

The Memory Of The Dead In Lakota Thought

The relationship between the living and the dead in Lakota thought is not identical to the Euro-American Christian framework, and understanding it provides context for understanding the burial practices and the protective secrecy.

The concept of the nagi — the spirit or soul of a person — is central to Lakota understanding of death.

After death, the nagi is understood to have a continued existence and continued relationships with the living.