An excerpt from his Commentary on Ecclesiastes, Book 10.
This light he called delightful and foretold that it would be good to see the sun of glory. In the days of his incarnation, he said: I am the light of the world. He who follows me will not walk in darkness but will possess the light of life. On another occasion he said: This is the judgment: the light has come into the world.
Sunlight, then, is a symbol. What we see with our eyes foretells the coming of the Sun of Justice. He was a most delightful light for those who were worthy to be instructed by him personally. He was also a radiance to those who saw him with their bodily eyes when he lived on earth as a man among men. It was not just any man they saw, for he was true God. He made the blind see, the lame walk, and the deaf hear. He cleansed the lepers, and by a simple command he raised the dead back to life.
Now it is our supreme delight to behold him and contemplate his divine splendor with the eyes of our spirit. When we participate in and associate with that beauty, we are enlightened and adorned and this is our delight. We take delight in being saturated with the sweetness of the Spirit, in being clothed in holiness, in achieving wisdom. Finally we are filled with a joy that comes from God and endures through all the days of our earthly life. In the wise words of Ecclesiastes: A man may live for many years, but he will experience happiness throughout his days. For all who gaze upon the Sun of Justice, he is their supreme delight. David spoke of them: Let them be joyful before God and be jubilant with joy. Indeed he even said: Rejoice in the Lord, you who are just, for praise befits those who are upright.
and to the Son
and to the Holy Spirit:
as it was in the beginning,
is now, and will be forever. Amen