Shamanism is all the rage now in New Mexico.
My wife and I wanted to go skinny-dipping at a small pool of water which is a wide spot between two 35 foot rock walls. The ghost who lives there pushed the rocks apart many years ago and has been holding them apart so that the water flows into a 5 foot deep depression in the earth between them. Natives here pay respect by first skinny-dipping, then lounging on the grass above the pool while she gently massages sore muscles, bruised egos, and damaged personalities. Offerings are voluntarily left in the sense that necklaces, money, rings, etc. have a way of disappearing there. We just accept the fact.