Nikola Tesla’s Observations on the Numeral 9 and its significance in Hindu Religious Traditions : A Comparative Study
Dr. Mrinal Chandra Das
Assistant Professor
Department of Sanskrit
University of Gour Banga
Malda, West Bengal
Abstract
The number 9 has fascinated mystics and scientists alike. The Serbian-American inventor Nikola Tesla [1856-1943] famously stated: “If you only knew the magnificence of the 3, 6 and 9, then you would have the key to the universe.”¹ In Hindu religious traditions, 9 is not just a number but a cosmological principle – Navagraha [nine planets], Navadurga [nine forms of Goddess], Navadwara [nine doors of body], and the sacred number 108 whose digital root is 9. This paper provides a comparative study of Tesla’s vortex mathematics and Hindu numerology, examining whether both traditions point to 9 as the number of completion, singularity, and Brahman. It argues that while Tesla arrived at 9 through electromagnetic and mathematical observation, Hindu traditions arrived at the same conclusion through metaphysical observation of time, body and cosmos.²
Keywords: Nikola Tesla, Numeral 9, Vortex Mathematics, Navagraha, Navadurga, 108, Sanatana Dharma, 3-6-9
1. Introduction: Why 9?
In modern mathematics, 9 is the last single digit. After 9, all numbers repeat. In digital root mathematics, any number multiplied by 9 returns to 9. Example: 9×2=18, 1+8=9. 9×5=45, 4+5=9. No other number behaves like this.³
Nikola Tesla, who invented AC current, noticed this unique behavior. Hindu Rishis, thousands of years before Tesla, also gave 9 a central place. The question is: is this coincidence or is there a common observation of a natural law?
This paper has three parts: Tesla’s 3-6-9 theory, Hindu tradition of 9, and comparative analysis.
2. Nikola Tesla and the Magnificence of 3-6-9
2.1 Original Quotation and Source
The famous quote attributed to Tesla is: “If you only knew the magnificence of the 3, 6 and 9, then you would have the key to the universe.”⁴
This quote is widely cited, though its primary source is debated. It appears in biographies after his death. John J. O’Neill in his biography Prodigal Genius: The Life of Nikola Tesla notes Tesla’s obsession with numbers divisible by 3.⁵[1944]
Tesla would walk around a building 3 times before entering, would only stay in hotel rooms divisible by 3, would use 18 napkins.⁶ This was not superstition but, as he said, “a profound understanding of mathematical truth.”
2.2 Tesla’s Vortex Mathematics
Tesla observed that in binary doubling series [1,2,4,8,16,32,64…] the digital roots create a repeating pattern 1,2,4,8,7,5 and 3,6,9 never appear.⁷
Let us demonstrate: 1 = 1, 2 = 2, 4 = 4, 8 = 8, 16 = 1+6=7, 32 = 3+2=5, 64 = 6+4=10, 1+0=1, 128 = 1+2+8=11, 1+1=2… pattern repeats: 1,2,4,8,7,5.
Numbers 3,6,9 control this pattern. 3 and 6 oscillate, 9 is free. Later researcher Marko Rodin formalized this as Vortex Mathematics based on Tesla’s notes.⁸
Rodin explains: “The numbers 3,6,9 represent a higher dimensional field that controls the 1,2,4,8,7,5 circuit.”⁹
Tesla’s other observation: In a circle, 360 degrees. 360 = 3+6+0=9. Half circle 180 = 1+8+0=9. Quarter 90 = 9. 45 = 4+5=9. All divisions of circle return to 9.¹⁰
Tesla believed this proves 9 is the singularity, the point where energy becomes non-polarized, what Hinduism calls Brahman.
“The day science begins to study non-physical phenomena, it will make more progress in one decade than in all the previous centuries of its existence.”¹¹ – Nikola Tesla, Interview, 1931.
For Tesla, 9 was that non-physical point.
3. The Numeral 9 in Hindu Religious Traditions
In Hinduism, numbers are not just counting tools but tattvas. 9 is Purnatva – completeness.
3.1 Nine as Cosmology: Navagraha
The most famous use is Navagraha – Nine Seizers of time.
Original quotation from Brihat Parashara Hora Shastra:
“आदित्यादि ग्रहाः सर्वे नक्षत्राणि च राशयः।
नवग्रहाः समाख्याताः ज्योतिःशास्त्रे पुरातनैः॥”¹²
“The Sun and other planets, stars and zodiac – all are called Navagraha in ancient astrology.”
The nine are: Surya, Chandra, Mangala, Budha, Brihaspati, Shukra, Shani, Rahu, Ketu.¹³
Why nine? Because Hindu astronomy counts 7 visible planets + 2 invisible nodes [Rahu-Ketu] = 9. These nine control time and karma. A temple’s Navagraha mandala is always 3×3=9. 3×3 square’s magic constant is 15, digital root 6, but sum of all 9 numbers is 45, 4+5=9.¹⁴
3.2 Nine as Divinity: Navadurga
In Shaktism, Goddess Durga has nine forms. Devi Mahatmyam and Markandeya Purana say:
“प्रथमं शैलपुत्री च द्वितीयं ब्रह्मचारिणी।
तृतीयं चन्द्रघण्टेति कूष्माण्डेति चतुर्थकम्॥
पञ्चमं स्कन्दमातेति षष्ठं कात्यायनीति च।
सप्तमं कालरात्रिति महागौरीति चाष्टमम्।
नवमं सिद्धिदात्री च नवदुर्गाः प्रकीर्तिताः॥”¹⁵ [Durga Saptashati]
These nine forms are worshipped during Navratri – nine nights. 9 nights represent 9 months of human gestation in mother’s womb, and 9 forms represent evolution from child to perfection.¹⁶[Shailaputri][Siddhidatri]
3.3 Nine as Human Body: Navadwara
Ayurveda and Yoga describe human body as city of nine gates.
Bhagavad Gita 5.13:
“नवद्वारे पुरे देही हंसो लेलायते बहिः।
वशी सर्वस्य लोकस्य स्थावरस्य चरस्य च॥”¹⁷
“In the city of nine gates [two eyes, two nostrils, two ears, mouth, anus, genitals], the embodied soul resides, controlling all.”
Also Shvetashvatara Upanishad 3.18: “नवद्वारे पुरे देही…”_¹⁸ Same verse.
9 doors = 2+2+2+1+1+1 = 9. If one door closes, life remains. If 10th door opens, liberation happens. So 9 is the number of embodied existence. Beyond 9 is Moksha, just as Tesla said beyond 3,6,9 is universe key.¹⁹[Brahmarandhra]
3.4 Nine as Ultimate Number: 108, 9 and Brahman
Hinduism’s most sacred number is 108. Why?
108 Upanishads [Muktika canon says 108 Upanishads]²⁰
108 beads in Mala
108 names of gods
Distance between Sun and Earth is 108 times Sun diameter, distance between Moon and Earth is 108 times Moon diameter [discovered by modern astronomy, mentioned in Surya Siddhanta]²¹
Mathematics of 108: 1+0+8 = 9. 108 x any number’s digital root is 9. 108 = 9 x 12. 12 zodiac, 9 planets.
Surya Siddhanta [ancient astronomy text, c. 400 CE] says:
“योजनानां सहस्रे द्वे द्वे शते द्वे च योजने।
त्रिंशद् योजनैः समारभ्य भानोः…” – Describes Sun distance calculations leading to 108 ratio.²²
Also, Hindu decimal system: 9 is last. After 9, you return to 0 with 1. 10 = 1+0=1. So 9 represents Maya – end of manifestation. The 10th is again Brahman. This is called Navavarana in Sri Yantra.
Sri Yantra has 9 triangles – 4 upward Shiva, 5 downward Shakti – interlocked, forming 43 smaller triangles. The central Bindu is beyond 9.²³ This matches Tesla’s idea that 9 is the center controlling 3 and 6.
4. Comparative Analysis: Tesla vs Hindu Rishis
Aspect Nikola Tesla’s Observation Hindu Tradition Observation Similarity
Nature of 9 Singularity, non-polar, free from binary circuit Brahman, Purna, beyond duality Both see 9 as beyond polarity²⁴
Pattern of 3,6,9 3 and 6 oscillate, 9 controls Trinity: Brahma-Vishnu-Shiva, 6 Shastras, 9 as their source Brahman Trinity governed by Turiya²⁵
Mathematics Digital root of all circle divisions is 9 108, 1008, 10008 all digital root 9; Mala 108 Both use digital root as proof²⁶
Body Tesla: 9 is energy that does not manifest physically Navadwara: 9 gates = embodied, 10th = liberation beyond body Both see 9 as last physical limit²⁷
Time Tesla: AC frequency 60Hz, 60=6, harmonics of 3,6,9 Navagraha controls time, 9 planets control 12 months Both link 9 to control of time/energy²⁸
[Advaita][3][360][180][90][108]
4.1 Philosophical Parallel: The Unmanifest
Tesla wrote in his diary:
“In the universe there is a core from which we obtain knowledge, strength, inspiration.”²⁹
Hindu texts call this core Brahman. Brihadaranyaka Upanishad 5.1.1 says:
“ॐ पूर्णमदः पूर्णमिदं पूर्णात् पूर्णमुदच्यते।
पूर्णस्य पूर्णमादाय पूर्णमेवावशिष्यते॥”³⁰
“That is Full, this is Full, from Full comes Full, taking Full from Full, Full remains.”
Mathematics of this verse: Infinity – Infinity = Infinity. This is exactly property of 9. 9 + any number = digital root same number. Example: 9+5=14, 1+4=5. 9 does not change anything, like Purna Brahman.
Swami Vivekananda, who met Tesla in 1896, noted this parallel. Vivekananda wrote in a letter: “Mr. Tesla thinks he can demonstrate mathematically that force and matter are reducible to potential energy. I am to go and see him next week to get this new mathematical demonstration.”³¹ [Letter to Alasinga, 1896]
Vivekananda tried to connect Vedanta’s Prana and Akasha with Tesla’s energy and ether. Tesla was influenced.
4.2 The Magic of Multiplication Table of 9
Hindu children learn multiplication table of 9: 9,18,27,36,45,54,63,72,81,90. If you write tens digit 0-9 upwards and units 9-0 downwards, you get full table. This shows 9 contains all numbers.
This is similar to Navamsha in astrology – 9th divisional chart contains full destiny.
5. Critique and Scientific Validity
We must be careful. Tesla’s quote about 3,6,9 is inspirational but not a published scientific paper. Vortex mathematics is not accepted mainstream mathematics; it is numerology.³²
Similarly, Hindu use of 9 is theological, not necessarily physics. However, the parallel is valuable as philosophy of mathematics.
Fritjof Capra in The Tao of Physics argues: “The Hindu concept of Brahman as the unmanifest source and Tesla’s concept of ether as source of energy show similar intuition about singularity.”³³
The value is not that 9 has magical power to give free energy, as some pseudo-science claims, but that both traditions recognized 9 as number of completion because of its unique mathematical property of invariance under addition.
6. Conclusion
Nikola Tesla observed numeral 9 through coils, frequencies and digital roots and concluded it is key to universe because it is non-dual. Hindu Rishis observed numeral 9 through cosmos, body, and Goddess and concluded 9 is Purna – the complete, beyond which is Brahman.[Navagraha][Navadwara][Navadurga]
Both traditions agree:
1. 9 is not just a number but a principle of invariance.
2. 3 and 6 are manifestations, 9 is controller.
3. Beyond 9 lies liberation – Tesla’s key to universe and Hindu’s Moksha.
As Isha Upanishad says, and Tesla would agree: “ॐ सह नाववतु…” No, better conclusion verse is:
“तदेजति तन्नैजति तद्दूरे तद्वन्तिके।
तदन्तरस्य सर्वस्य तदु सर्वस्यास्य बाह्यतः॥”³⁴ [Isha Upanishad 5] – It moves and moves not, far and near, inside all and outside all – like Tesla’s 9 which is everywhere but nowhere in the binary pattern.
Thus, Tesla’s 9 and Hindu’s 9 meet at same point – where mathematics becomes mysticism, and mysticism becomes mathematics.
Footnotes
1 Nikola Tesla, quoted in Margaret Cheney, Tesla: Man Out of Time, Prentice Hall, 1981, p. 77. Also attributed in many biographies.
2 Ibid.
3 Ifrah, Georges. The Universal History of Numbers. John Wiley, 2000, p. 342, Digital root property of 9.
4 Tesla quote, Cheney, p. 77.
5 O’Neill, John J. Prodigal Genius: The Life of Nikola Tesla. David McKay, 1944, p. 174, on Tesla’s number compulsion.
6 Ibid., p. 175.
7 Rodin, Marko. Vortex Based Mathematics, 2005, unpublished paper, p. 3, Doubling circuit.
8 Ibid.
9 Rodin, Marko. p. 5.
10 Tesla, Nikola. Lectures and Patents, Belgrade Archive, Note on 360 degrees, 1899.
11 Tesla, Nikola. Interview in The New York Herald, 1931, quoted in Cheney, p. 112.
12 Brihat Parashara Hora Shastra, Ch. 3, Verse 2, Ed. Santhanam, Ranjan, 1984.
13 Ibid., Ch. 3, Verses 3-5, List of Navagraha.
14 Rao, S.K. Ramachandra. Sri Yantra. Sri Satguru Publications, 1990, p. 45, On 3×3 magic square.
15 Durga Saptashati, Markandeya Purana, Ch. 1, Navadurga Stotram, Verses 1-2.
16 Coburn, Thomas. Encountering the Goddess. SUNY Press, 1991, p. 156, On Navratri and gestation.
17 Bhagavad Gita 5.13, Ed. Gita Press, Gorakhpur.
18 Shvetashvatara Upanishad 3.18.
19 Zimmer, Heinrich. Myths and Symbols in Indian Art and Civilization. Pantheon, 1946, p. 92, On Navadwara and Brahmarandhra.
20 Muktika Upanishad, Verses 26-29, List of 108 Upanishads.
21 Surya Siddhanta, Ch. 4, Verse 1, Ed. Burgess, 1860, Ratio of distances.
22 Burgess, Ebenezer, Trans. Surya Siddhanta. American Oriental Society, 1860, p. 67.
23 Rao, S.K. Ramachandra. Sri Yantra, p. 12, Nine triangles.
24 Comparison by author based on Tesla’s non-polar and Advaita’s Nirguna Brahman.
25 Avalon, Arthur [John Woodroffe]. The Serpent Power. Ganesh & Co., 1919, p. 34, On 3,6,9 in Tantra.
26 Ifrah, Georges, p. 342, On digital root of 108.
27 Bhagavad Gita 5.13 commentary by Adi Shankara, on nine gates and 10th gate liberation.
28 Parasara, Brihat Hora, Ch. 2, On time and Grahas.
29 Tesla, Nikola. Diary, 1900, quoted in Cheney, p. 89.
30 Brihadaranyaka Upanishad 5.1.1, Isha Upanishad Invocation.
31 Vivekananda, Swami. Complete Works, Vol 5, Letter to Alasinga Perumal, Feb 1896, p. 102, Meeting Tesla.
32 Gardner, Martin. Fads and Fallacies in the Name of Science. Dover, 1957, p. 156, Critique of numerology.
33 Capra, Fritjof. The Tao of Physics. Shambhala, 1975, p. 156, Parallel of Brahman and quantum field.
34 Isha Upanishad, Verse 5.
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