Alfred Jensen's *The Tetractys* is a monumental triptych painted in oil on three joined canvases, showcasing the artist's signature use of bold, vibrant colors arranged in dense, geometric patterns. Inspired by numerological and mystical systems, Jensen fills the surface with thick, impastoed segments of color organized into grids and Pythagorean structures that reference the ancient concept of the tetractys as a symbol of cosmic order. The work pulses with an almost ceremonial energy, reflecting Jensen's lifelong obsession with synthesizing mathematics, philosophy, and color into a unified visual language.