John 9:5-7 ESV
As long as I am in the world, I am the light of the world.” Having said these things, he spit on the ground and made mud with the saliva. Then he anointed the man's eyes with the mud and said to him, “Go, wash in the pool of Siloam” (which means Sent). So he went and washed and came back seeing.
Jesus begins the healing of this man by mixing the living water from His mouth with the dust of the earth. He anointed the man's eyes with the mud of a new creation. He then sends the man on a journey. At the end the man has washed and comes back seeing.
This is a picture of the follower of Christ. Christ forms us into the mud of a new creation, a creature that is sent into the wilderness to live and wash as he travels in the growing light of God. He leaves blind but comes back seeing.
We see in part now, but at journey's end we will see clearly.