It is one of the Mysteries of our church, which takes place during a service called the Divine Liturgy and is considered the most important and finest manifestation of Christian worship. Its key element is the Holy Communion, in which Orthodox Christians, after having prepared physically through fasting and spiritually through penitence and confession, receive the Holy Communion from the same Chalice where the consecrated wine and bread have been respectively transubstantiated into the Precious Blood and Body of Jesus Christ. In this way, the believers 'receive' Christ in them, while they 'come together' in one body among themselves.

The holy vessels used for the celebration of the Eucharist, such as the Chalice and the Paten, are usually made of precious metals and most frequently of silver and gold.