The philosopher's stone is a legendary substance, allegedly capable of turning inexpensive metals into gold. It was sometimes believed to be an elixir of life, useful for rejuvenation and possibly for achieving immortality. For a long time, it was the most sought-after goal in Western alchemy.
In the view of spiritual alchemy, making the philosopher's stone would bring enlightenment upon the maker and conclude the Great Work. It is also known by several other names, such as 'materia prima.'
The Philosopher's Stone, meaning that which contains the knowledge of creation, is a symbol that represents the final outcome of man's inner transformation, of the conversion of the base metal of his outer character to the golden properties of his higher self. It is all about the evolution of consciousness in the alchemy of time.