[19] Accordingly, many persons have become corrected and improved by migrations from their native land, having been cured by such means of their frenzied and wicked desires, by reason of the sight no longer being able to furnish to the passion the images of pleasure. For in consequence of the separation which has taken place, this passion has only a [2] vacuum through which to rove, since there is no longer any object present by which it can be inflamed.