36. It is worth while to take note of the whole reason for their superstitious abstinence, which is given as follows:—Since, we are told, the member of God has been mixed with the substance of evil, to repress it and to keep it from excessive ferocity,—for that is what you say,—the world is made up of both natures, of good and evil, mixed together. But this part of God is daily being set free in all parts of the world, and restored to its own domain. But in its passage upwards as vapor from earth to heaven, it enters plants, because their roots are fixed in the earth, and so gives fertility and strength to all herbs and shrubs. From these animals get their food, and, where there is sexual intercourse, fetter in the flesh the member of God, and, turning it from its proper course, they come in the way and entangle it in errors and troubles. So then, if food consisting of vegetables and fruits comes to the saints, that is, to the Manichæans by means of their chastity, and prayers, and psalms, whatever in it is excellent and divine is purified, and so is entirely perfected, in order to restoration, free from all hindrance, to its own domain. Hence you forbid people to give bread or vegetables, or even water, which would cost nobody anything, to a beggar, if he is not a Manichæan, lest he should defile the member of God by his sins, and obstruct its return.