Hildegard of Bingen (German: Hildegard von Bingen; Latin: Hildegardis Bingensis; c. 1098 – 17 September 1179), also known as Saint Hildegard and the Sibyl of the Rhine, was a German Benedictine abbess and polymath active as a writer, composer, philosopher, mystic, visionary, and as a medical writer and practitioner during the High Middle Ages. She is one of the best-known composers of sacred monophony, as well as the most recorded in modern history. She has been considered by many in Europe to be the founder of scientific natural history in Germany.
Hildegard’s convent elected her as magistra (mother superior) in 1136. She founded the monasteries of Rupertsberg in 1150 and Eibingen in 1165. Hildegard wrote theological, botanical, and medicinal works, as well as letters, hymns and antiphons for the liturgy. Furthermore, she wrote poems, while supervising miniature illuminations in the Rupertsberg manuscript of her first work, Scivias.There are more surviving chants by Hildegard than by any other composer from the entire Middle Ages, and she is one of the few known composers to have written both the music and the words.[7] One of her works, the Ordo Virtutum, is an early example of liturgical drama and arguably the oldest surviving morality play. She is also noted for the invention of a constructed language known as Lingua Ignota.
Although the history of her formal canonization is complicated, regional calendars of the Roman Catholic church have listed her as a saint for centuries. On 10 May 2012, Pope Benedict XVI extended the liturgical cult of Hildegard to the entire Catholic Church in a process known as “equivalent canonization”. On 7 October 2012, he named her a Doctor of the Church, in recognition of “her holiness of life and the originality of her teaching.

Spirituality
From early childhood, long before she undertook her public mission or even her monastic vows, Hildegard’s spiritual awareness was grounded in what she called the umbra viventis lucis, the reflection of the living Light. Her letter to Guibert of Gembloux, which she wrote at the age of seventy-seven, describes her experience of this light with admirable precision:
From my early childhood, before my bones, nerves, and veins were fully strengthened, I have always seen this vision in my soul, even to the present time when I am more than seventy years old. In this vision my soul, as God would have it, rises up high into the vault of heaven and into the changing sky and spreads itself out among different peoples, although they are far away from me in distant lands and places. And because I see them this way in my soul, I observe them in accord with the shifting of clouds and other created things. I do not hear them with my outward ears, nor do I perceive them by the thoughts of my own heart or by any combination of my five senses, but in my soul alone, while my outward eyes are open. So I have never fallen prey to ecstasy in the visions, but I see them wide awake, day and night. And I am constantly fettered by sickness, and often in the grip of pain so intense that it threatens to kill me, but God has sustained me until now. The light which I see thus is not spatial, but it is far, far brighter than a cloud which carries the sun. I can measure neither height, nor length, nor breadth in it; and I call it “the reflection of the living Light.” And as the sun, the moon, and the stars appear in water, so writings, sermons, virtues, and certain human actions take form for me and gleam.
Visions
Hildegard said that she first saw “The Shade of the Living Light” at the age of three, and by the age of five, she began to understand that she was experiencing visions. She used the term ‘visio’ (the Latin for “vision”) to describe this feature of her experience and she recognized that it was a gift that she could not explain to others. Hildegard explained that she saw all things in the light of God through the five senses: sight, hearing, taste, smell, and touch. Hildegard was hesitant to share her visions, confiding only to Jutta, who in turn told Volmar, Hildegard’s tutor and, later, secretary. Throughout her life, she continued to have many visions, and in 1141, at the age of 42, Hildegard received a vision she believed to be an instruction from God, to “write down that which you see and hear.”Still hesitant to record her visions, Hildegard became physically ill. The illustrations recorded in the book of Scivias were visions that Hildegard experienced, causing her great suffering and tribulations. In her first theological text, Scivias (“Know the Ways”), Hildegard describes her struggle within:
But I, though I saw and heard these things, refused to write for a long time through doubt and bad opinion and the diversity of human words, not with stubbornness but in the exercise of humility, until, laid low by the scourge of God, I fell upon a bed of sickness; then, compelled at last by many illnesses, and by the witness of a certain noble maiden of good conduct [the nun Richardis von Stade] and of that man whom I had secretly sought and found, as mentioned above, I set my hand to the writing. While I was doing it, I sensed, as I mentioned before, the deep profundity of scriptural exposition; and, raising myself from illness by the strength I received, I brought this work to a close – though just barely – in ten years. […] And I spoke and wrote these things not by the invention of my heart or that of any other person, but as by the secret mysteries of God I heard and received them in the heavenly places. And again I heard a voice from Heaven saying to me, ‘Cry out, therefore, and write thus!’
It was between November 1147 and February 1148 at the synod in Trier that Pope Eugenius heard about Hildegard’s writings. It was from this that she received Papal approval to document her visions as revelations from the Holy Spirit, giving her instant credence.[32]
On 17 September 1179, when Hildegard died, her sisters claimed they saw two streams of light appear in the skies and cross over the room where she was dying.