Walking with your eyes closed leads to distruction/death without God's leading.  This is what is means when we are blind to the deeper mysteries of the works of God.  God's purpose for the blind is to move us from blindness to sight (to be born again), God's plan - The Light producing Sight that God be gloified.  Hallelujah!!!  Let's continue to receive Sight that the anointing of Life, the Holy Spirit will reveal wisdom and spiritual understanding of God's will for our life through John 9.