I am in Toronto, Canada participating in the Passion Week Services of St. Gregorios Indian Orthodox Church. One of the liturgies we conduct is Vade Dalmino.
Vade Dalmino means entrance in to heaven (literally harbor/ port). This liturgy is based on the parable of the ten virgins (Matthew 25:1 ff.). This liturgy is conducted after the second kaumo off midnight prayer of the first day of the passion week ( or after Sunday evening prayer). The liturgy begins inside the Church with prayers and songs. Before the reading of the Gospel clergy put on vestments and go out of the Church in procession through the northern door and reaches the southern door which remain closed until after the Gospel reading. After everybody reached the door step, Gospel is read by the chief celebrant. After the reading the chief celebrant knocks at the door three times and the door will be opened (the assumption is that there shall not be any foolish virgins as in the case of the parable. The procession goes inside the Church and with prayers the liturgy is closed. It was the first time I conducted the service. They say it was also for the first time in all of North American parishes.