For St. John of the Cross, the mystical path meant living with an all-consuming desire to know and love God, completely and fully, abandoning everything that didn’t move him toward that goal.He believed that God illuminates the individual—who, because of that illumination, then has the desire and power to shed the illusions of this world. These illusions include the messages of the senses, which distort the reality of union with God.In his poem Dark Night, St. John of the Cross extol...