Doctrine of signatures

describing the relationship of the human body, constellations, and plants with signatures for medical use The origins of the doctrine of signatures are debated by historians. The concept of the doctrine of signatures dates back to Hippocratic medicine and the belief that "cures for human ills were divinely revealed in nature, often through plants." The concept would be further developed by Dioscorides. Dioscorides would provide ample descriptions of plant medications through various drawings, detailing the importance of their look, name, shelf life, how to tell when plants have gone bad, and how to properly harvest the crop for medical use. He suggested that God marked objects with a sign, or "signature", for their purpose, White explains the connectiveness between Christianity and the doctrine of signatures as its increased presence and significance in the orthodox faith as theological pseudoscience. == Linked remedies ==

It is worth noting that it is possible that these are post hoc attributions—the appearance and treatment linked after the medicinal property was discovered. Depending on the article, remedies connected to the doctrine vary in number and consistency. == Scientific, spiritual, and social context ==

Signatures are often described as post hoc attributions and mnemonics used to remember the properties of a plant rather than the reason it was originally used. There is no scientific or historical evidence that plant shapes and colors have aided in the discovery of their medical uses. Similar theories have been observed all over the world in ancient Egypt, China, pre-Columbian America, and the Middle East. Remedies would, in many cases, be based on the environmental availability of that resource rather than its objective effectiveness. In this context, the elite observers would be those that, for example, notice that lungwort's leaves look like lung tissue rather than positing that the dark red flowers could look like blood clots or the pink petals like irritated skin. Hypotheses like these and the questions they posed, regardless of the validity of the hypotheses themselves, inspired scientific investigations into the safety and usefulness of many plant-based remedies. == In literature ==

The phrase "signatures of all things" appears in the beginning of episode three in James Joyce's novel Ulysses. The character Stephen Dedalus is walking along the beach, thinking to himself, "Signatures of all things I am here to read, seaspawn and seawrack, the nearing tide, that rusty boot". The Canadian poet Anne Szumigalski, 1922–1999, entitled her third full-length collection Doctrine of Signatures. == See also ==