The Prayer of Catherine of Siena

   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 satisfied in your abyss, for she continually hungers after you, the eternal Trinity, desiring to see you with the light of your light. As the hart desires the springs of living water, so my soul desires to leave the prison of this dark body and see you in truth.

   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 consumed in your heat all the soul's self-love; you are the fire which takes away cold; with your light you  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 (1347-1380)

Catherine of Siena was a well-known mystic from Italy and a nun  in the Dominican order that flourished in the fourteenth century. unlike  other religious groups, the members of this organization lived at home and devoted themselves to a life of penance and contemplation. She single-handedly persuaded Gregory XI (1370-78) to return to Rome after a long period of six successive French popes in history who decided to rule from Avignon, France. this period is also known as the "Babylonian Captivity of the Church" (1305-1370).