Hey if you're interested in doing that ceremony, there's a place in Bonfil that Robyn and I stayed at called Jardin Secrecto. They also do mescalin ceremonies as well. The name of the guy who runs the place is named Julio. We we're offered to participate in the ceremony but it was only in Spanish and we didn't think we would get the full experience. Julio seemed to respect the practice as a spiritual ceremony and not a theraputic one. Last time I checked he is on the lookout for a Northern Mexican Shamman as they only have an american shamman for mescaline at the moment.