The spread of alchemy followed a certain pattern: one culture would pick it up, translate existing texts, write new original ones, and then eventually lose interest. This pattern started in Egypt and spread to Greece through Alexander the Great’s military victories. Eventually Arab philosophers revived it, lost interest as well, and passed it on to new proponents in mediaeval Europe. In Europe it persisted, losing momentum with mediaeval scholars but finding a new life with the Renaissance. It is at this point in the 16th century, when Sendivogius reigned as one of Europe’s most respected alchemists.
Metal transmutation, the feat Sendivogius supposedly accomplished in Rudolf II’s court, was a staple of alchemy. It was said to be accomplished using the coveted ‘philosopher’s stone’. Not only was it believed this substance produced gold, but also that it could cure diseases and purify the soul. Ideas of purity and immortality were the main tenets of alchemy, and they were passed along through the centuries from one culture to the next.
Alchemists wrote about these ideas, but these texts were not the easiest to comprehend. Written in vague mysterious ways, one could even say they were written in code. Zbigniew Andrew Szydło, a Royal Society chemist and author of Water Which Does Not Wet Hands, a book about Sendivogius’s alchemy, explains that alchemists used these writing styles to protect themselves.
The alchemists were afraid. There was a certain fear among the alchemists of the right type of information falling into the wrong people's hands.
This fear was valid because alchemy was a risky business – Sendivogius was even kidnapped by a rival alchemist, Johann von Mühlenfels, who wanted to learn his alchemical secrets. Also, it was possible somebody could misinterpret their work and take it as witchcraft or as an insult to the church, putting the alchemist at risk from the authorities. It’s no wonder alchemists wrote in code, but ultimately, it’s perhaps this encryption that has led to alchemy becoming so forgotten today.