You, O eternal Trinity, are a deep sea, into which the more I enter the more I find, and the more I find the more I seek. The soul cannot be satiated in your abyss, for she continually hungers after you, the eternal Trinity, desiring to see you with the light of your light…O abyss, O eternal Godhead, O sea profound, what more could you give me than yourself? You are the fire that ever burns without being consumed; you consume in your heat all the soul’s self-love; you are the fire which takes away cold; with your light illuminate me so that I may know all your truth. Clothe me, clothe me with yourself, eternal truth, so that I may run this mortal life with true obedience, and with the light of your most holy faith.
- Catherine of Siena, 14th-century Italian mystic and theologian