Walter Russell (1871-1963) was an extraordinary American polymath, mystic, painter, sculptor, and philosopher. Often referred to by his contemporaries as the "modern Leonardo da Vinci," Russell experienced a profound period of mystical illumination in 1921 that fundamentally altered his worldview. For the remainder of his life, he dedicated himself to articulating a unified cosmology-blending esoteric philosophy with alternative physics-exploring the divine mechanics of light, sacred geometry, and the energetic structure of the universe.