quick search on the Philosphers Stone  would be  good to read, I feel like It would be a good start and read about Alchemy  and  Hermetics today.Here is the definitions
al·che·my
[ álkəmee ]
predecessor of chemistry: an early, unscientific form of chemistry that sought to change base metals into gold and discover a life-prolonging elixir, a universal cure for disease, and a universal solvent alkahest
transforming or enchanting power: a power supposedly like alchemy, especially of enchantment or transformation
her·met·ic
[ hər méttik ]
airtight: so tightly or perfectly fitting as to exclude the passage of air
protected from outside influence: protected from or preventing any outside interference have a good evening....good by