On blindness and true guides

“A blind man, if he be not quite blind, refuses to be led by a guide; and, since he sees a little, he thinks it better to go in whatever happens to be the direction which he can distinguish, because he sees none better; and thus he can lead astray a guide who sees more than he, for after all it is for him to say where he shall go rather than for the guide. In the same way a soul may lean upon any knowledge of its own, or any feeling or experience of God, yet, however great this may be, it is very little and far different from what God is; and, in going along this road, a soul is easily led astray, or brought to a standstill, because it will not remain in faith like one that is blind, and faith is its true guide.”

– St. John of the Cross, Ascent of Mt. Carmel