Arms horizontal. Legs together. The man fits the square. Da Vinci wrote that height equals arm span. The square's side equals both.
Arms raised, legs spread. Fingertips reach the circle at distance R = 0.70 from the navel (verified: 0.699996). Feet reach the circle at distance R = 0.70 (verified: 0.700005). The space between the legs forms an equilateral triangle — da Vinci wrote this himself.
Circle center is the navel. The cosmos does not resize.
Square center is the genitals — not the navel. Leonardo's key correction over Vitruvius. Different shapes, different centers.
The golden section: R/H = 137/225 ≈ 0.6089.
Square corners reach OUTSIDE the circle. Earth extends beyond cosmos at its corners.
Square floor is exactly tangent to the bottom of the circle.
The Vitruvian Man is not a static drawing. It is two positions of the same body. Inhale: the man opens, reaches the divine circle. Exhale: the man returns to the earthly square. The oscillation between touching the cosmos and returning to earth IS the drawing. IS the breathing. IS what Da Vinci encoded.
The circle is not a cage. It is the universe saying: you can touch me, but only when you are fully open.