John 9:1,5-7 Jesus put clay on the blind man's eyes

9 And as Jesus passed by, he saw a man which was blind from his birth.

⁵ As long as I am in the world, I am the light of the world.
⁶ When he had thus spoken, he spat on the ground, and made clay of the spittle, and he anointed the eyes of the blind man with the clay,
⁷ And said unto him, Go, wash in the pool of Siloam, (which is by interpretation, Sent.) He went his way therefore, and washed, and came seeing.
-John 9:1, 5-7 King James Version (KJV)

Apocalypse Explained, by Emanuel Swedenborg, [1757-9], tr. by John Whitehead [1911], at sacred-texts.com

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And blind... signifies that they are without the understanding of truth... This is evident from the signification of "blind," as being those who are without the understanding of truth... [19] In John: Jesus seeth a man blind from birth. He said to the disciples, while I am in the world I am the light of the world. When He had thus spoken, He spat on the ground, and made clay of the spittle, and anointed the eyes of the blind man with the clay, and said, Go and wash thee in the pool of Siloam. He went away therefore and washed himself, and came seeing (John 9:1, 5-7). Why the Lord did this no one understands unless he knows the internal or spiritual sense of the Word; in that sense, by "a man blind from birth" those are meant who are born outside of the church and who therefore could not know anything about the Lord, or be taught out of the Word. "The clay that the Lord made from spittle on the ground" signifies reformation by means of truths from the sense of the letter of the Word; "the ground" is the church where the Word is; "clay" is the ultimate [outer] Divine forming; "anointing the eyes of the blind with it" is to give thereby the understanding of truth; "the pool of Siloam" also signifies the Word in the letter; "to be washed there" is to be purified from falsities and evils. That this is what is meant by it has been hitherto concealed...