Also known as Spiritism, Candombl and Umbanda. The Macumba religion is practiced by a large number of Brazilians, and involves the apparent possession of worshippers by their gods; in a process that in some respects resembles that of Voodoo ceremonies. There is an initiation ceremony before anyone can become a member of one of the numerous Macumba cults. The initiate having gone into a trance, the priest must decide which god has taken possession, in order to prescribe the appropriate ceremony. This involves animal sacrifice after which blood is smeared on the initiate; during deep trance, suggestions are made for changes in behavior and for obedience to the cult. During worship, drumming and dancing encourage worshippers to go into trance-states in which their faces often violently change expression, and they sometimes become totally exhausted. On coming out of their trance, they usually know nothing of what has happened during the ceremony, but their behavior is often changed.
This was taken from the occultopedia and, although far from representative, addresses the spirituality of Brazil. Many other sources will address this land of superstition. Of course, some may say that the Holy Spirit is superstition as well, but I disagree.