In the biography of St. Catherine of Siena, written by her one-time spiritual director, Blessed Raymond of Capua, there is a passage that recounts a mystical conversation between Catherine and Jesus as He taught her about the foundation of the spiritual life. Jesus tells Catherine: “Do you know, daughter, who you are and who I am? If you know these two things, you will be blessed.” Jesus then goes on to say: “You are she who is not; whereas I am He who is. Have this knowledge in your soul and the Enemy will never deceive you and you will escape all his wiles; you will never disobey my commandments and will acquire all grace, truth and light.”