For in the aforesaid book he thus speaks: I marvelled more than I can say when I first felt my heart grow warm and burn, truly, not in imagination but as it were with sensible fire. I was indeed amazed at that flame which burst forth within me; and at this unwonted comfort -- because of my inexperience of this abundance -- I have often felt my breast to see if perchance this heat was due to some outward cause. But when I knew that this fire of love had blazed forth only from within, and was not of the flesh but a gift of my Maker, I was full of joy and dissolved in a desire for yet greater love; and chiefly because of the inflowing of this most sweet delight and internal sweetness which, with this spiritual burning, bedewed my mind to the core. For I had not thought before that such sweet heat and comfort might come to pass in this exile.
See then by these words how far he had advanced in attaining the most sweet love of God; but, because there are many steps preparatory to the kindling of this love -- as, for example, those things which diminish and remove the loves opposed to it -- therefore this saint wore down the lusts of the flesh; to the love of which many are borne off by a mad and bestial impulse. He spurned the world too with its riches, being content with only the bare necessaries of life, that he might more freely enjoy the delights of true love. For these reasons, therefore, he mortified his flesh with many fasts, with frequent vigils, and repeated sobs and sighings, quitting all soft bedding, and having a hard bench for a bed, and for a house a small cell; fixing his mind always on heaven, and desiring to depart and be with Christ, his most sweet Beloved.