Greening

greenery

It’s Spring and everything in the garden is blooming. In Sydney the winters are not harsh but we still appreciate the lengthening light, the warmer days, and the signs of nature renewing itself that come with the change of season.

In medieval times, someone who watched and understood the seasonal cycle of renewal Hildegard_von_Bingenwas the great visionary, Hildegard of Bingen. Born in Germany’s Rhineland in 1098, Hildegard was not only a prominent religious figure of her day but also – as her considerable writings and works demonstrate – an expert on natural science, medicine and herbal treatments, cosmology, poetry and music. Further testament to her influence is that many of her writings (and musical compositions) survive to the present day. Hildegard’s works are not ‘easy reads’ but a lot of her ideas resonate with our current interests, particularly our concerns over climate change and caring for our planet.

Don’t be mistaken: Hildegard was a woman of her time and, it seems, a very strong personality. She had an extraordinary intellect and pulled no punches when it came to asserting a theologically precise view of the medieval Church; but, she also had a deep reverence for, and an amazing insight into, the beauty and order of creation. So powerful are Hildegard’s expressed views on the importance and dignity of all creation that the coining of the term viriditas (greening/greeness) is frequently, and somewhat mistakenly, attributed to her.  In fact, earlier theologians such as St Augustine had made mention of viriditas but it is appropriately and particularly associated with Hildegard because of the new and interesting way that she interpreted and applied the concept. For Hildegard, viriditas was the reflection of God’s goodness and beauty in everything in the natural world. It stood for vitality, fertility, fruitfulness and growth; in essence, all the things that we now associate with the greenness of nature.  For Hildegard, viriditas was also synonymous with physical and spiritual health. Similarly, for us today, ‘greenness’ and the seasonal renewal of the natural world are signs that the Earth is healthy and flourishing.

Hildegard was canonised (becoming St Hildegard) by Pope Benedict XVI in May 2012 and, though it took the Church nearly 900 years to acknowledge her remarkable contributions, the canonisation is strangely timely as it coincides with our efforts to come to terms with the ravages of a changing climate. Hildegard of Bingen has a lot to teach us.

Pests, Ink and Red-letter days

oakapple

Spring is really here. I know that because the blow-flies are appearing in the kitchen even before I’ve opened the door in the morning, and the roses are attracting the aphids in swarms.  But even pests sometimes serve a useful purpose. I’m thinking especially of the way in which medieval ink was made. The basic ingredient was the oak apple which, despite its rather inviting name, was actually a “gall” which is an abnormal growth found on plants. Wasps and flies act as the gall-forming “agents” by depositing their eggs in plant tissue. Secretions from the larva stimulate the plant tissue to develop galls which then serve as a protective covering around the larva. This formation process produces high levels of tannic acid in the galls, and this acid is one of the essential ingredients in medieval (iron-gall) ink.

To produce the ink, the tannic acid was crushed and infused in rainwater or vinegar then combined with ferrous sulphate and a little gum arabic which thickened the ink, giving it a better viscosity for its uptake into the quill. The reaction between these three ingredients produced a dark brown to black coloured ink that was well absorbed by parchment or vellum.

Other colours in the medieval palette – evidenced in the beautifully vivid illuminated manuscripts – also required quite a bit of preparation of both chemical and natural substances.  White , for example, was prepared from lead carbonate and, though this resulted in a wonderfully opaque ink, it was also poisonous.

The rarest and most expensive colour of the Middle Ages was blue, made from ultramarine, a powdered form of the semi-precious stone, lapis lazuli, and sourced only from Afghanistan at that time.  

Red (vermilion), though more easily prepared by combining ground mercuric sulphide, egg white and gum arabic, was also highly prized for its beautiful effects and was used in manuscripts for headings, initials, and rubrics. The rubrics in liturgical calendars usually acted to “highlight” a particular feast day or celebration and we maintain the idea in our expression: “red-letter days”.

In Spring, the vivid colours and fragrance of the flowers make every day a “red-letter day”, pests or no pests.

Dally Messenger III

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