Dr. Jekyll and Mr. Hyde

Western literature · Robert Louis Stevenson · 1886

A respected doctor creates a potion that releases his Shadow as a separate personality. The Shadow, once freed, grows stronger and more autonomous until it destroys the host. The definitive literary Shadow parable: what you repress doesn't disappear. It develops independently.

Hyde doesn't emerge from nowhere. He was always there. Jekyll's 'goodness' required Hyde's existence.

The pattern underneath: The Shadow. The parts of yourself you've pushed out of sight, not because they're bad, but because they didn't fit the version of you the world seemed to need.