The purpose of the Hindu Upanayana rite, in which, among other things, a sacred thread is placed on a boy's shoulder and he is given special scripture verses, is to
secure the blessing of Ganesh, the elephant-head god of success and prosperity.
obtain salvation by the forgiveness of sins that are attached to one's soul.
mark the transition from childhood to full participation into the religious community.
ensure a happy marriage and that a first-born male heir will come to his household.