Traditional Use and Shamanism:

In Andean ceremonies, healers use the San Pedro brew for:

Spiritual and physical "cleansing": It is used as an initial purge (often inducing vomiting) to rid the body of "evil entities," negative energies, or emotional blockages.

Addiction treatment: It has been used since ancient times to combat issues such as alcoholism and smoking.

Connection and diagnosis: The shaman uses the trance state to diagnose the patient's ailments, provide guidance, and connect with nature.