For the nearer the soul approaches Him, the blacker is the darkness which it feels and the deeper is the obscurity which comes through its weakness; just as, the nearer a man approaches the sun, the greater are the darkness and the affliction caused him through the great splendour of the sun and through the weakness and impurity of his eyes. In the same way, so immense is the spiritual light of God, and so greatly does it transcend our natural understanding , that the nearer we approach it, the more it blinds and darkens us.
St. John of the Cross, Dark Night of the Soul (via existential-saint)