"Thus God came into our world, becoming one of us, so that by His sharing in our life, we might have a share in His life. In Holy Baptism we are united to Him, and everything else He gives us in the Life of His Church, is for the purpose of strengthening, nurturing, and renewing this Life within us. All of the sacraments have this as their focus. It is the primary purpose of prayer.
"Thus, stated simply, to have communion with God means to have a share in His Divine Life. He lives in me and I in Him. I come to know God even as I know myself. I come to love even as God loves because it is His love that dwells in me. I come to forgive as God forgives because it His mercy that dwells within me.
"Without such an understanding of communion, these vitally important parts of the Christian life usually become reduced to mere moralisms. We are told to love our enemies as though it were a simple moral obligation. Instead, we love our enemies because God loves our enemies, and we want to live in the Life of God. We’re not trying to be good, or to prove anything to God by loving our enemies. It is simply the case that if the Love of God dwells in us, then we will love as God loves."
Read it all:
"A Relationship with God?"
This is, indeed, the Orthodox Christian faith of the Apostles.