What do the sign of cross simpolizes in the Eastern orthodox church and it's function?

In the Eastern Orthodox Church, the sign of the cross symbolizes the Trinity - the Father, Son, and Holy Spirit. It is a gesture of blessing, protection, and devotion. The sign of the cross is made by touching the forehead, chest, right shoulder, and left shoulder in that order, while saying "In the name of the Father, and of the Son, and of the Holy Spirit, Amen."

The sign of the cross is used in various prayers, blessings, and rituals in the Eastern Orthodox Church. It is also made by the priest during the Divine Liturgy and by the faithful throughout the church service. The sign of the cross is a way for Orthodox Christians to express their faith and devotion to God and to seek His protection and blessing.