Oh, eternal Trinity! oh Godhead! which Godhead gave value to the Blood of Thy Son, Thou, oh eternal Trinity, art a deep Sea, into which the deeper I enter the more I find, and the more I find the more I seek; the soul cannot be satiated in Thy abyss, for she continually hungers after Thee, the eternal Trinity, desiring to see Thee with light in Thy light. As the hart desires the spring of living water, so my soul desires to leave the prison of this dark body and see Thee in truth. How long, oh! eternal Trinity, fire and abyss of love, will Thy face be hidden from my eyes? Melt at once the cloud of my body. The knowledge which Thou hast given me of Thyself in Thy truth constrains me to long to abandon the heaviness of my body, and to give my life for the glory and praise of Thy Name, for I have tasted and seen with the light of the intellect in Thy light, the abyss of Thee — the eternal Trinity, and the beauty of Thy creature, for, looking at myself in Thee, I saw myself to be Thy image, my life being given me by Thy power, oh! eternal Father, and Thy wisdom, which belongs to Thy only-begotten Son, shining in my intellect and my will, being one with Thy Holy Spirit, who proceeds from Thee and Thy Son, by whom I am able to love Thee. Thou, eternal Trinity, art my creator, and I am the work of Thy hands, and I know through the new creation which Thou hast given me in the blood of Thy Son, that Thou art enamoured of the beauty of Thy workmanship. Oh! Abyss, oh! eternal Godhead, oh! Sea profound! what more couldst Thou give me than Thyself? Thou art the fire which ever burns without being consumed; Thou consumest in Thy heat all the soul's self-love; Thou art the fire which takes away all cold; with Thy light Thou dost illuminate me so that I may know all Thy truth; Thou art that light above all light, which illuminates supernaturally the eye of my intellect, clarifying the light of faith so abundantly and so perfectly, that I see that my soul is alive, and in this light receives Thee — the true light. By the light of faith I have acquired wisdom in the wisdom of the Word — Thy only-begotten Son. In the light of faith I am strong, constant, and persevering. In the light of faith I hope; suffer me not to faint by the way. Thou, the food of the angels, hast given Thyself in a fire of love to men; Thou, the garment which covers all our nakedness, feedest the hungry with Thy sweetness. Oh! Sweet, without any bitter, oh! eternal Trinity, I have known in Thy light, which Thou hast given me with the light of holy faith, the many and wonderful things Thou hast declared to me, explaining to me the path of supreme perfection, so that I may no longer serve Thee in darkness, but with light, and that I may be the mirror of a good and holy life, and arise from my miserable sins, for through them I have hitherto served Thee in darkness. I have not known Thy truth and have not loved it. Why did I not know Thee? Because I did not see Thee with the glorious light of the holy faith; because the cloud of self-love darkened the eye of my intellect, and Thou, the eternal Trinity, hast dissipated the darkness with Thy light. Who can attain to Thy greatness, and give Thee thanks for such immeasurable gifts and benefits as Thou hast given me? Clothe me, clothe me with Thee, oh! eternal Truth, that I may run my mortal course with true obedience and the light of holy faith.
O Eternal Trinity (Closing Prayer of the Dialogue of St. Catherine of Siena)
'Thou, O eternal Trinity, art a deep sea, into which the deeper I enter the more I find, and the more I find the more I seek' — the prayer with which Catherine ended the book she dictated in ecstasy.
On Trinity Sunday; on 29 April, the saint's feast; in thanksgiving after Communion.
Catherine dictated the Dialogue to her secretaries in the autumn of 1378, in the state of ecstasy in which God spoke to her and she to God. It closes not with a treatise but with a prayer of thanksgiving to the Trinity that she pours out in one breath — sea, fire, light, food, garment, mirror — and ends 'Clothe me, clothe me with Thee, O eternal Truth'. The Church quotes its central image in the Office of Readings for her feast.
The English is Algar Thorold's translation of 1896, the first complete English Dialogue, from its final pages.
