"You shine with eyes sweet as the sun..."

The Holy Mandylion of Christ (source)

  
You shine with eyes sweet as the sun, and Your appearance is even sweeter still, O Christ***, for You enlighten both the physical and the noetic senses.
  
You Who created all things by Your word, and took on the form that was not Your own, you left to us Your appearance which we have received and rejoice in gladness.
-from the Canon for the Holy Mandylion
  
(amateur translation of text from source)
  
***See the Psalmic prophecy of David: "Thou art more beautiful than the sons of men: grace has been shed forth on thy lips" (Psalm 45:2)
  

The story of the Holy Mandylion (source)

  

Through the prayers of our Holy Fathers, Lord Jesus Christ our God, have mercy on us and save us! Amen!