Page:Ante-Nicene Christian Library Vol 4.djvu/145

] there is parturition, the vessel by which blood was conveyed to the fœtus is cut off: there is an obstruction of the flow, and the blood receives an impulse towards the breasts; and on a considerable rush taking place, they are distended, and change the blood to milk in a manner analogous to the change of blood into pus in ulceration. Or if, on the other hand, the blood from the veins in the vicinity of the breasts, which have been opened in pregnancy, is poured into the natural hollows of the breasts; and the spirit discharged from the neighbouring arteries being mixed with it, the substance of the blood, still remaining pure, it becomes white by being agitated like a wave; and by an interruption such as this is changed by frothing it, like what takes place with the sea, which at the assaults of the winds, the poets say, "spits forth briny foam." Yet still the essence is supplied by the blood.

In this way also the rivers, borne on with rushing motion, and fretted by contact with the surrounding air, murmur forth foam. The moisture in our mouth, too, is whitened by the breath. What an absurdity is it, then, not to acknowledge that the blood is converted into that very bright and white substance by the breath! The change it suffers is in quality, not in essence. You will certainly find nothing else more nourishing, or sweeter, or whiter than milk. In every respect, accordingly, it is like spiritual nourishment, which is sweet through grace, nourishing as life, bright as the day of Christ.

The blood of the Word has been also exhibited as milk. Milk being thus provided in parturition, is supplied to the infant; and the breasts, which till then looked straight towards the husband, now bend down towards the child, being taught to furnish the substance elaborated by nature in a way easily received for salutary nourishment. For the breasts are not like fountains full of milk, flowing in ready prepared; but, by effecting a change in the nutriment, form the milk in themselves, and discharge it. And the nutriment suitable and wholesome for the new-formed and new-born babe is