The legend surrounding the Emerald Tablet is that it is a tablet that was made/created by Hermes thousands and thousands of years ago and were said to be made of a crystalline substance that was indestructible . It is said to have existed before the great deluge and is also said to have contained the keys to the great Alchemical tradition. It was kept protected in the Pillars of Hermes or some say the Pillars of Enoch which also contained sacred items and manuscripts. These ancient teachings were stored in these pillars to protect them against disaster and were said to survive the great flood because of this. These same pillars can be found throughout the ages in various traditions. The pillars of Freemasonry (the pillars on Solomon’s Temple), the pillars on the High Priestess tarot card, and the pillars on the Kabbalistic Tree of Life, to name a few. The contents of the tablet and other sacred manuscripts made their way into various esoteric and mystical writings throughout the ages and have been kept alive by various mystery traditions to this very day. In the linked article, the author delves into the contents and history of the Emerald Tablet. Hope you enjoy!