"men like trees walking"
by cm

Christ Healing the Blind
Public DomainChrist Healing the Blind - Credit: El Greco
A Biblical reference:

And he cometh to Bethsaida; and they bring a blind man unto him, and besought him to touch him. And he took the blind man by the hand, and led him out of the town; and when he had spit on his eyes, and put his hands upon him, he asked him if he saw ought. And he looked up, and said, I see men as trees, walking. After that he put his hands again upon his eyes, and made him look up: and he was restored, and saw every man clearly.

Mark 8:22-25