The story of “Philosopher’s Stone” is a gem from legends, and dates back to 300 to 400 CE. According to lore, it was used in Alchemy, a medieval science that attempts to transmute base metals into gold and to create an elixir of immortality. But let's actually unleash the ( SECRET ) and look what, This Mystical “Philosopher’s Stone” Really is ..... ( Based on the speaker's Opinion. )