On a Christmas Eve in the 12th century, a Benedictine nun named Elisabeth kept vigil in the church with her community. During the celebration of the Eucharist, she saw a woman sitting in the center of a bright, shining sun. The woman’s hair fell over her shoulders, and the light from the sun around her filled the monastery where Elisabeth was praying and then gradually spread out to illuminate the entire world.

As Elisabeth gazed at the woman, a dark cloud moved in to obscure the rays of the sun, and the woman began weeping. Elisabeth’s vision lasted all through the night of Christmas Eve, with the cloud moving in and out, the woman shining and weeping, the earth lightening and darkening.

On Christmas Day an angel appeared to Elisabeth, and she asked him who the woman was. She is the sacred humanity of Jesus, the angel explained, and the sun is the divinity that holds Christ’s humanity and illuminates it.