It would be false to assume that ascetical renunciations are relevant to a virtue inasmuch only as they imply a material reference to that particular virtue. The practices of fasting, of silence, of restraining the delights of the eyes, and others like them – they all have no direct nexus, for instance, with the virtue of charity, but yet they create space in our souls for charity. For our slavery to the interests of the body, as well as our concupiscence from which we are to free ourselves by fasting, thwarts the path of charity within us.  (Transformation in Christ, ch. 9)