The Mona Lisa: A Canvas of Secrets
The Mona Lisa — Hidden Geometry and Mathematical Harmony
A Painting Full of Secrets
Leonardo da Vinci's Mona Lisa (1503–1519) is renowned for its enigmatic smile, masterful sfumato shading,
and mysterious background.
This page shares my observations of concealed geometry — squares, circles, ratios, and alignments —
suggesting Leonardo intentionally embedded mathematical patterns, blending art with proportion and
sacred numbers, such as the Golden Ratio and Squaring the Circle.
2D Dimensions and Boxes
The painting includes the squaring the circle idea, and it divides boxes with precise measurements:
Bottom box: 31.8 × 53 cm
Top left: 45 × 45 cm
Top right: 8 × 45 cm
Calculations yield elegant ratios (e.g., 2025 / 360 = 5.625 × 8 = 45)
The height of the painting is 76.8 minus 31.8 = 45 (√2025)
The main vertical line splits the canvas in a 1.25 ratio (44.44...% left, 55.55...% right).
Hands show 9 digits (5 + 4 = 1.25 ratio), matching the yellow cross proportions.
3D Structure: Chair with Sphere
In 3D interpretation, the design forms a chair with a sphere resting on it:
45 × 45 × 45 = 91125
45 × 45 × 8 = 16200
53 × 45 × 31.8 = 75843
Differences and balances (e.g., 918 / 6 = 153) suggest expansion/contraction, like pressure in a ball.
(Cube-to-sphere volume mentioned)
Pi and Numerical Echoes
Height calculations involve pi:
76.8 × 2 = 153.6
Pi positioned between 153 and 154
154 / 49 ≈ 22/7 (ancient pi approximation)
49 × π ≈ 153.938 / 2 ≈ 76.9 cm (painting height)
153 recalls the 153 fish in John 21:11.
Bottom box echoes the biblical ark ratios (2.5 × 1.5 × 1.5 cubits).
Golden Ratio, Squaring the Circle and Concealed Details
Golden ratio ϕ guides the composition, with a spiral pointing to where a flower might be worn in the hair.
Veil, hair, bump on hand (above ring finger), and lack of eyebrows serve as guides for golden ratio drawings.
Blue and yellow 3D crosses gyrated at 32° and 26.5° align in 3D modeling.
Leonardo refined the painting over years to perfect these alignments.
Like concealed knowledge in Shakespeare (Francis Bacon) or architecture (Oak Island).
The name "Mona Lisa" carries additional meaning — 4 × 4 = 16.
The main vertical line intersects the ring finger exactly as well as the strange bump on top of her
hand! It shows the right hand and it depends on culture. "In a few European countries, the ring is
worn on the left hand prior to marriage, and then transferred to the right during the ceremony."
Remarkably, the golden ratio spiral comes to a point where a woman would wear a flower in her hair.
My Observations and Conclusions
These patterns — precise boxes, 3D forms, pi integrations, golden spirals, and symbolic numbers — suggest
Leonardo deliberately encoded sacred geometry and mathematics.
The alignments are too consistent to be accidental, reflecting his notebooks' obsession with proportion.
While not "proven secrets," the painting feels like a geometric puzzle — art as hidden knowledge, preserved
for those who look closely.
The smile draws the eye, but the numbers hold the deeper harmony.
Exploratory observations — patterns inviting wonder.
What do you see in the canvas?