The Gospel lesson of Luke 18:35-43 –
Then it happened, as He was coming near Jericho, that a certain blind man sat by the road begging. And hearing a multitude passing by, he asked what it meant. So they told him that Jesus of Nazareth was passing by. And he cried out, saying, “Jesus, Son of David, have mercy on me!” Then those who went before warned him that he should be quiet; but he cried out all the more, “Son of David, have mercy on me!” So Jesus stood still and commanded him to be brought to Him. And when he had come near, He asked him, saying, “What do you want Me to do for you?” He said, “Lord, that I may receive my sight.” Then Jesus said to him, “Receive your sight; your faith has made you well.” And immediately he received his sight, and followed Him, glorifying God. And all the people, when they saw it, gave praise to God.
We can contemplate with St. Gregory of Nyssa what sight is, how can we see God who is invisible?
“From what has been said then, it is clear that the Lord does not deceive us when He promises that the pure of heart shall see God (Matt. 5:8); nor does Paul deceive us when he teaches us in his epistles that no one has seen God nor can see Him (1 Tim. 6:16). For being by nature invisible, He becomes visible only in His operations, and only when He is contemplated in the things that are external to Him.”
(From Glory to Glory, p. 100)