According to Holy Tradition, the Entry of the Most Holy Theotokos into the Temple took place in the following manner. The parents of the Virgin Mary, Saints Joachim and Anna, praying for an end to their childlessness, vowed that if a child were born to them, they would dedicate it to the service of God. Clink on the link to learn about this very special Feast. https://www.oca.org/saints/lives/2021/11/21/103357-the-entry-of-the-most-holy-mother-of-god-into-the-temple