The Parable of the Ten virgins.
If, then, any one will keep this beauty inviolate and unharmed, and such as He who constructed it formed and fashioned it, imitating the eternal and intelligible nature of which man is the representation and likeness, and will become like a glorious and holy image, he will be transferred thence to heaven, the city of the blessed, and will dwell there as in a sanctuary. Now our beauty is then best preserved undefiled and perfect when, protected by virginity, it is not darkened by the heat of corruption from without; but, remaining in itself, it is adorned with righteousness, being brought as a bride to the Son of God; as He also Himself suggests, exhorting that the light of chastity should be kindled in their flesh, as in lamps; since the number of the ten virgins s signifies the souls that have believed in Jesus Christ, symbolizing by the ten the only right way to heaven. Now five of them were prudent and wise; and five were foolish and unwise, for they had not the forethought to fill their vessels with oil, remaining destitute of righteousness. Now by these He signifies those who strive to come to the boundaries of virginity, and who strain every nerve to fulfil this love, acting virtuously and temperately, and who profess and boast that this is their aim; but who, making light of it, and being subdued by the changes of the world, come rather to be sketches of the shadowy image of virtue, than workers who represent the living truth itself.