Blindness indicates the lack of life. If you have life, then you have sight, for light opens your eyes. So, first of all, the Lord pointed out that the blind man needed the light of life.

When the Lord did not want to go, they were puzzled, and when the Lord was about to go, they thought that it was not necessary to go. Once the Lord expressed His desire to go and see Lazarus, all of the disciples expressed their opinions.