O Centro Espirita Beneficente Uniao do Vegetal are a Brazillian based church that mix Christian beliefs and traditions from South America.
The BBC website has this:
"Members of the group believe they can understand God only by drinking the tea, which is consumed twice a month at four-hour ceremonies.
"The brewed tea, made from two plants that grow in the Amazon, contains dimethyltryptamine, or DMT, a controlled substance banned under federal drug laws.
"About 130 members of a Brazil-based church were involved in long-running dispute with federal agents, who seized their tea in 1999."
George Bush is said to disagree with this ruling (but then he is a Methodist!).
So, plans for worship when I begin at St Mary's ...