As anyone even somewhat familiar with Christianity knows, various Christian denominations have different, specific approaches to baptism—that all important rite involving water and the Holy Spirit. Depending on its theological commitments, a church may expect the person being baptized to be an adult (or, at least old enough to make a conscious decision to be baptized), to be fully immersed in water (rather than sprinkled or poured upon), to be triple immersed (rather than once),