The Auto-Sacramental "The secrets of the Mass" by Calderón de la Barca allows us to make a poetic approach to the events of the Last Supper. The La Morada theater company, using a highly visual and symbolic language, helps us understand these mysteries. The enveloping and sacred music of the Portuguese choral ensemble Cardo-Roxo with the themes of their work "No monte das Oliveiras", accompanies us on this timeless journey. From the beginning of this work, we wanted art to be the narrative vehicle, of the complexities that are hidden and treasured, in each gesture and word of that Dinner that would change the world.