They have eyes, but see not; and ears, but do not understand (Matt. 13:13).
For nothing else blinds a person except their own and the confirmation of what is false. A person’s own is the love of self and the derivative conceit of self-intelligence; and the confirmation of what is false is thick darkness counterfeiting the light. The light of such person is merely natural, and their sight is like that of one who sees phantoms in the gloom.