Another means of being formed into the likeness of Jesus Christ is by participation in the Holy Mysteries. The Holy Mysteries (also called the Sacraments) are designated vehicles to experience the divine grace bestowed upon humanity.
The sacraments, like the Church, are both visible and invisible. In every sacrament there is a combination of an outward visible sign with an inward spiritual grace. Saint John Chrysostom wrote that they are called mysteries because what we believe is not the same as what we see; instead, we see one thing and believe another.
The sacraments are personal — they are the means whereby God’s grace is appropriated to each individual Christian.