The Myanmar Buddhist ceremony that traditionally introduces a boy to monastic life is called shinbyu.
Shinbyu is a Burmese Buddhist novitiation ceremony modeled on the Buddha’s son Rahula entering the monastic order. A boy, often between about seven and fourteen, temporarily becomes a novice monk, known as a samanera, although ages and arrangements can vary.
Families commonly treat the event as one of the most important religious occasions in a boy’s life. Ceremonies may include festive processions, richly decorated clothing recalling a prince’s life, head shaving, robe offering, and a formal request to enter the monastery. The child then observes monastic rules for the period of temporary ordination.
Shinbyu is not the same as Thingyan, Myanmar’s New Year water festival, or a permanent ordination. Many boys later return to lay life, while some continue Buddhist education. Girls may participate in related temporary religious experiences, but shinbyu specifically refers to boys’ novice ordination.