All that is required for a complete pacification of the spiritual house is the negation through pure faith of all the spiritual faculties and gratifications and appetites. This achieved, the soul will be joined with the Beloved in a union of simplicity and purity and love and likeness. In the night of sense there is yet some light, because the intellect and reason remain and suffer no blindness. But his spiritual night of faith removes everything, both in the intellect and in the senses. The less a soul works with its own abilities, the more securely it proceeds, because its progress in faith is greater. –St John of the Cross ‘Ascent of Mount Carmel’.