Today Christian Orthodox believers celebrate one of the twelve main holidays of the church calendar, the Nativity of the Most Holy Theotokos. On this day, the parents of the Virgin Mary are remembered in churches at services. Veneration of the Most Holy Theotokos is at the head of Christianity. All Christian Orthodox churches are decorated with her images. According to the traditional folk calendar, the Nativity is celebrated at the turn of autumn, the time of the onset of stable autumn weather and the end of the harvesting season.