The elder sister goes describes it as being pretty simple. Get water, paint certain symbols on the pot in the proper colors for what you're going to be doing, soak, clean off, then slowly pour out the water while performing certain chants.<br/><br/>The shaman is pretty knowledgeable, so these chants often have accompanying 'dances' that make the whole thing at least a little humorous. One that she was present for was a blessing for an unplanned childbirth, which involved invocations for Blue and Purple, and the dance looked vaguely like a couple having sex.<br/><br/>This is a passage into adulthood, so it's more likely going to involve a few jokes about maturity and certain physical attributes, may they become large but not too large.