This sermon addresses the profound difference between man's perception of blindness and God's understanding of it, drawing heavily from John chapter 9, the story of the man born blind. Traditionally, both the disciples and the Jews believed physical blindness was a direct punishment for sin committed by the individual or their parents, reflecting a wrong concept of a judgmental God. However, Jesus introduces a radical new perspective, stating that the man's condition was not due to sin, but rather so the works of God might be displayed. Ultimately, Jesus defines the true affliction as spiritual blindness, which is the cruelty of heart and an unwillingness to accept divine truth, exemplified by those who witnessed his miracles yet remained closed off to his authority and message. The source challenges listeners to examine themselves to ensure they are not harboring this deeper spiritual ailment despite experiencing God's daily messages and works.