Holy Icons were the first media used for teaching a world that was largely illiterate at the dawn of the Church on earth. Icons are still used to channel the eye to holiness and worship of God in the Orthodox Church today.
Icons are 'written' and not 'painted' and are to 'read' and not to simply be looked upon. It is an error to consider an Icon a picture.
The Icon of Christ is "written" to express to the "reader" that He alone is the head of Hus Church.
Ephesians 4:15 even as Christ is head of the Church......
John 10:30 I and my Father are one.....
Acts 8:37 I believe that Jesus Christ is the Son of God.......(Ethiopian eunuch)
Matt. 16:16 You are Christ the Son of the living God..........
(Saint Peter - The Apostle)
There are many Icons written of Christ our Lord to explain to us the greatness of His word. But He alone is the true ineffable icon of God ....Amen.