And of this faith it is said, If ye have faith as a grain of mustard seed Matt. xvii. 20..  For just as the grain of mustard seed is small in size, but fiery in its operation, and though sown in a small space has a circle of great branches, and when grown up is able even to shelter the fowls Matt. xiii. 32.; so, likewise, faith in the swiftest moment works the greatest effects in the soul.  For, when enlightened by faith, the soul hath visions of God, and as far as is possible beholds God, and ranges round the bounds of the universe, and before the end of this world already beholds the Judgment, and the payment of the promised rewards.  Have thou therefore that faith in Him which cometh from thine own self, that thou mayest also receive from Him that faith which worketh things above man S. Chrysostom (Hom. xxix. in 1 Cor. xii. 9, 10) in like manner distinguishes dogmatic faith from the faith which is “the mother of miracles.”  The former S. Cyril calls our own, not meaning that God’s help is not needed for it, but because, as he has shewn in § 10, it consists in the mind’s assent, and voluntary approval of the doctrines set before it:  but the latter is a pure gift of grace working in man without his own help.  Compare Apostolic Constitutions, VIII. c. 1..