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The sins of the heart and the errors of the mind gang up on faith and often have appearance in their favor. As long as believers are on earth, there remains in them a dualism, a dualism not of the head and the heart, but of the flesh (σαρξ) and the spirit (πνευμα), of the “old” (παλαιος) and the “new” (καινος) person (ἀνθρωπος). Faith more or less retains a supernatural character insofar as it transcends the nature of unspiritual persons. It is not yet fully natural; the moment it becomes natural it ceases and becomes sight. Faith is above all faith because it sees something that the unspiritual do not perceive.