The incarnation is one of the most incomprehensible events in human and divine history. That the divine, the One who created all things, who is self sufficient and without need, would voluntarily become one of the created to redeem what the created had voluntarily destroyed is beyond understanding. With supreme simplicity the Apostle John put it this way: "The Word became flesh and made his dwelling among us. We have seen his glory, the glory of the One and Only, who came from the Father, full of grace and truth" (John 1:14).
In the incarnation, Jesus chose to step into our shoes, take on our bones, live with our illnesses, frailties, sorrows and joys, and relate to His Father as we do. He became one of us so that we could become one of His family. He fully entered into our space and thus is one who understands us fully (Hebrews 4:14-16).
That is not the extent of the incarnation. For Jesus said to us, "As you sent me into the world, I have sent them into the world" (John 17:18). In other words as He was sent for incarnation, we too are sent for incarnation - and every time we voluntarily step into the situation of another to share their life, to carry their burdens, to bless them with the love, words or compassion of Jesus - we too, live out the incarnation - again
Incarnation is not a one time event. For those who have been touched by Christ's incarnation, we live it out daily as we step into the lives of those around us with His love. The power of Jesus' incarnation into this world is incomprehensible. The power of all of His people daily living out that incarnation with others is equally incomprehensible. It is the hope of our hurting world because He is the hope of all humanity.
We live out the incarnation when we choose to be the love of Jesus - daily with those around us. As He did for us we do for others. As He identified with us we identify with others. As He cared for the least of these so we care for the least of these. A voluntary entering into the needs of others with the love of the incarnate Christ.