Must be "Sretenie" in Church-Slavonic, or "the Encounter of Our Lord with the Righteous Symeon and Anna in the Temple of Jerusalem". Named apparently after one of the Great 12 Feasts of the Orthodox Church, celebrated on the 2d of February (Gregorian Calendar). The Feast commemorates the event of meeting between Child Jesus, Our Lady and the righteous Elders Symeon and Anna, described in the Gospel of Luke. It took place 40 days after the Nativity. The Mother (Our Lady Ever Virgin Mary) followed the law prescribing mothers to take part in a purification ceremony 40 days after a childbirth. The rudiment of this Old Testament practise is present in Orthodox Church's practise even today - see the Evhologion, or Trebnik, or The Book of Needs - the ritual of "Prayer over the mother on the 40Th day after childbirth" - precedes or follows the Ritual of baptism.