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The Platonic solids
The five Platonic solids
The tetrahedron, octahedron and icosahedron have triangular faces, the cube has square faces and the dodecahedron has pentagonal faces. Consider each face of a Platonic solid divided into its sectors. The table below lists their numbers of corners, sides & triangular sectors.
Number of vertices = V; number of edges = E; number of faces = F; number of sectors in a face = m.
Number of corners = C = V + F; number of sides = e = E + mF; number of triangles = T = mF (m = 3 for tetrahedron, octahedron & icosahedron; m = 4 for cube; m = 5 for dodecahedron).
Geometrical composition of the five Platonic solids
Polyhedron 
V 
E 
F 
m 
C 
e 
T 
Total = C + e + T 
tetrahedron 
4 
6 
4 
3 
8 
18 
12 
38 
octahedron 
6 
12 
8 
3 
14 
36 
24 
74 
cube 
8 
12 
6 
4 
14 
36 
24 
74 
icosahedron 
12 
30 
20 
3 
32 
90 
60 
182 
Subtotal 
30 
60 
38 
 
68 
180 
120 
368 
dodecahedron 
20 
30 
12 
5 
32 
90 
60 
182 
Total 
50 
90 
50 
 
100 
270 
180 
550 
Embodiment of the holistic parameter 550
a) Geometry of faces
The lowest row in the table indicates that there are 550 corners, sides & triangles in the
50 faces of the five Platonic solids. The Divine Name ELOHIM with number value
50 that is associated with Binah, the third Sephirah in the Tree of Life, prescribes the five
regular polyhedra with 50 vertices and 500 (=50×10) other geometrical
elements. This demonstrates par excellence the formative, or shapedetermining, nature of the
archetypes embodied in this Sephirah heading the Pillar of Judgement (one of the Kabbalistic titles of Binah is
"Aima," the divine mother). The shapes of the regular polyhedra require 550 geometrical elements to create them,
where 550 = 10(1+2+3+4+5+6+7+8+9+10) = 10(1^{2}+2^{2}+3^{2}+4^{2}+5^{2}),
i.e., this number is the sum of 50 squares of integers. They include 100 corners of 180
triangles, where 100 (the 50th even integer) = 10^{2} = 1^{3} +
2^{3} + 3^{3} + 4^{3}. This illustrates how the Pythagorean Decad (10=1+2+3+4)
and the integers 1, 2, 3 & 4 symbolized by the four rows of dots in the tetractys symbolizing the Decad express
the geometry of the Platonic solids. Their holistic character is demonstrated by the fact that their faces are
composed of 550 geometrical elements, for this is the number of SLs in the 91 Trees of Life that make up
CTOL:
(SL = Sephirothic level, denoted by the black dots in the diagram above). Every single, geometrical element composing the faces of the five Platonic solids corresponds to an SL of CTOL. Notice also that 550 = 10×55, where 55 is the tenth number after the beginning of the famous Fibonacci sequence of numbers:
0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, .....
550 is, therefore, not only ten times the sum of the first ten integers after 0 but also ten times the tenth Fibonacci number after 0! This beautiful property points to a deep involvement of the Fibonacci numbers in the sacred geometry of the Platonic solids. This is confirmed in Article 50 (Parts 1 & 2) (WEB, PDF). As 550 = 10 + 20 + 30 + 40 + 50 + 60 + 70 + 80 + 90 + 100, the tetractys array of the first ten integers multiplied by 10:
10 
10 

20  30  20  30  
40 
50 
60 
=  + 
40 
50 
60 
= 
180 + 50 + (20+30=50) + (40+60+80+90=270),  
70 
80  90  100  70  100  80  90 
naturally reproduces the geometrical composition of the triangles making up the five Platonic solids! This is because:
The 550 geometrical elements making up the faces of the five Platonic solids consist of their 50 vertices and 500 other elements. This 50:500 division manifests in the superposed outer and inner Tree of Life as the 50 intrinsic yods other than Sephiroth that belong solely to the former and as the 500 yods belonging only to the (7+7) enfolded polygons that surround their centres (see here). The 50 vertices of the five Platonic solids correspond to the outer Tree of Life with 50 intrinsic yods and the 500 extra geometrical elements needed to construct the faces of the Platonic solids correspond to the inner Tree of Life with 500 intrinsic yods. Four of these extra elements are the centres of the faces of the tetrahedron. They correspond to the four yods on the root edge shared by the (7+7) enfolded polygons.

The picture above shows how the 550 geometrical elements correspond to the 550 SLs in CTOL. Seven overlapping Trees of Life have 46 SLs. This is also the number of SLs below the top of the seventh Tree of Life in CTOL. They correspond to the 46 vertices of all the Platonic solids except the tetrahedron. The remaining 504 geometrical elements comprise 252 more elements in the lower halves of the five Platonic solids and 252 elements in their upper halves. The former correspond to the 252 SLs in the next 42 Trees up to the top (298th SL) of the highest Tree in 49 overlapping Trees of Life; counting the top of the 7tree, there are 252 SLs up to the top of the 49tree. The latter correspond to the 252 SLs in the next 42 Trees up to the top (550th SL) of the 91st Tree. The upper halves (excluding vertices) correspond to the six cosmic superphysical planes with 42 subplanes mapped by 42 Trees, whilst the lower halves (again, excluding vertices) correspond to the six superphysical planes with 42 subplanes mapped by 42 Trees. The 46 vertices correspond to the 46 SLs of seven Trees mapping the physical plane. As will be revealed in the discussion of the Sri Yantra in the next section, this 46:252:252 division exists as well in the representation of the seven cosmic planes/CTOL by the Sri Yantra.
b) Yod composition of tetractys sectors of faces
When the mF sectors of the faces of a Platonic solid with (E+mF) sides become tetractyses, they have [2(E+mF) = 2E
+ 2mF] hexagonal yods on their sides and (V + F = 2 + E) corners, using Euler's formula for a convex
polyhedron:
V − E + F = 2.
Therefore, the number of yods lining the sides of the mF tetractyses in the faces of a Platonic solid = 2E + 2mF + 2 + E = 2 + 3E + 2mF. "2" denotes two diametrically vertices (two adjacent vertices, in the case of the tetrahedron). For the five Platonic solids, ∑E = 90 and ∑mF = 180 (see table above). The number of yods lining the sides of the 180 tetractyses in the 50 faces of the five Platonic solids = ∑(2+3E+2mF) = 5×2 + 3×90 + 2×180 = 640, where 640 is the number value of Shemesh, the Mundane Chakra of Tiphareth. They include 50 vertices and 50 corners of sectors at the centres of their faces. Hence, (640−50−50=540) hexagonal yods line the sides of their 180 tetractyses. (10+540=550) yods line these sides other than the 40 vertices and the centres of the 50 faces that surround axes passing through the two diametrically opposite vertices of each Platonic solid (any two adjacent vertices, in the case of the tetrahedron). The 550 boundary yods correspond to the 550 SLs in CTOL. The 10 vertices lying on the axes of the five Platonic solids (their "poles") correspond to the 10 SLs that belong to the highest Tree in CTOL. The 540 hexagonal yods on the sides of the 180 tetractyses making up their 50 faces correspond to the 540 SLs in the 90 Trees below it. This is another way in which the five Platonic solids represent CTOL.
The number of yods in a Type B ngon = 15n + 1 (see Section 2 in Power of the polygons/General view). 30n yods surround the centres of two separate, Type B ngons. The first four separate, regular polygons of the inner Tree of Life are the triangle (n=3), square (n=4), pentagon (n=5) & hexagon (n=6). They have (3+4+5+6=18) corners. The number of yods surrounding the eight centres of the first (4+4) separate, Type B polygons = ∑30n = 30×18 = 540. They are the counterpart of the 540 hexagonal yods that line the 270 sides of the 180 tetractyses in the 50 faces of the five Platonic solids when these faces are Type A polygons. The holistic nature of the first (4+4) regular polygons is discussed in Article 48. This examplies the Tetrad Principle discussed in Article 1 when it is applied to the regular polygons.
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