https://en.wikipedia.org/wiki/Hindu_cosmology Hindu cosmology In Hindu cosmology the universe is cyclically created and destroyed in the timespan of 8.64 billion years. Deeply rooted in Hindu literature including Vedas and Puranas, it is believed time is divided into four epochs or Yuga, of which we occupy the final. In roughly 432,000 years the final Avatar Kalki will end time. Narayana destroys all this existence while creating a new existence. Time starts over. Hindu cosmology also describe the aspects of evolution, astronomy, astrology, creation etc. Contents [hide] 1 Description 2 Further elaborations from the Vedic texts o 2.1 Rig Veda o 2.2 The Puranas 3 Multiverse in Hinduism 4 Reception 5 See also 6 Notes 7 References 8 Further reading 9 External links Description[edit] The Hindu cosmology and timeline is considered by some the closest to modern scientific timelines [1] and even more which might indicate that the Big Bang is not the beginning of everything, [2] but just the start of the present cycle preceded by an infinite number of universes and to be followed by another infinite number of universes. [3] The Rig Veda questions the origin of the cosmos in: "Neither being (sat) nor non-being was as yet. What was concealed? And where? And in whose protection?…Who really knows? Who can declare it? When was it born, and when came this creation? The devas were born later than this world's creation, so who knows from where it came into existence? None can know from where creation has arisen, and whether he has or has not produced it. He who surveys it in the highest heavens, He alone knows-or perhaps does not know." (Rig Veda 10. 129) [4]
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https://en.wikipedia.org/wiki/Hindu_cosmology
Hindu cosmology
In Hindu cosmology the universe is cyclically created and destroyed in the timespan of 8.64
billion years. Deeply rooted in Hindu literature including Vedas and Puranas, it is believed time
is divided into four epochs or Yuga, of which we occupy the final. In roughly 432,000 years the
final Avatar Kalki will end time. Narayana destroys all this existence while creating a new
existence. Time starts over.
Hindu cosmology also describe the aspects of evolution, astronomy, astrology, creation etc.
Contents
[hide]
1 Description
2 Further elaborations from the Vedic texts
o 2.1 Rig Veda
o 2.2 The Puranas
3 Multiverse in Hinduism
4 Reception
5 See also
6 Notes
7 References
8 Further reading
9 External links
Description[edit]
The Hindu cosmology and timeline is considered by some the closest to modern scientific
timelines[1] and even more which might indicate that the Big Bang is not the beginning of
everything,[2] but just the start of the present cycle preceded by an infinite number of universes
and to be followed by another infinite number of universes.[3]
The Rig Veda questions the origin of the cosmos in: "Neither being (sat) nor non-being was as
yet. What was concealed? And where? And in whose protection?…Who really knows? Who can
declare it? When was it born, and when came this creation? The devas were born later than this
world's creation, so who knows from where it came into existence? None can know from where
creation has arisen, and whether he has or has not produced it. He who surveys it in the highest
heavens, He alone knows-or perhaps does not know." (Rig Veda 10. 129)[4]
A Tithi or lunar day is defined as the time it takes for the longitudinal angle between the moon and the Sun to increase by 12°.[1] Tithis begin at varying times of day and vary in duration from approximately 19 to approximately 26 hours.[citation needed]
A Paksa (also Pakṣa) or lunar fortnight consists of 15 tithis. A Māsa or lunar month (approximately 29.5 days) is divided into 2 Pakṣas: the one between new
moon and full moon (waxing) is called gaura (bright) or Śukla Pakṣa; the one between full moon and new moon (waning) Kṛṣṇa (dark) paksha
A Ṛtu (or season) is 2 Māsa[2] An Ayana is 3 Ṛtus A year is two Ayanas [1][3]
Tropical metrics[edit]
A Yāma = 1/4 of a day (light) or night [ = 7½ Ghatis ( ) = 3¾ Muhurtas = 3 Horas ( ) ] Four Yāmas make half of the day (either day or night) Eight Yāmas make an Ahorātra (day + night) An Ahorātra is a tropical day (Note: A day is considered to begin and end at sunrise, not
1 human fortnight (15 days) = 1 day (light) or night of the Pitṛs. 1 human month (30 days) = 1 day (light) and night of the Pitṛs. 30 days of the Pitṛs = 1 month of the Pitṛs = (30 × 30 = 900 human days). 12 months of the Pitṛs = 1 year of the Pitṛs = (12 months of Pitṛs × 900 human days = 10800
human days). The lifespan of the Pitṛs is 100 years of the Pitṛs (= 36,000 Pitṛ days = 1,080,000 human days =
3000 human years)[citation needed]
1 day of the Devas = 1 human year 1 month of the Devas = 30 days of the Devas 1 year of the Devas (1 divine year) = 12 months of the Devas
Among the Devas[edit]
The life span of any Hindu deva spans nearly (or more than) 4.5 million years. Statistically, we
can also look it as:
12000 Deva Years = Life Span of Devas = 1 Mahā-Yuga.
The Viṣṇu Purāṇa Time measurement section of the Viṣṇu Purāṇa Book I Chapter III explains
the above as follows:
2 Ayanas (6-month periods, see above) = 1 human year or 1 day of the devas 4,000 + 400 + 400 = 4,800 divine years (= 1,728,000 human years) = 1 Satya Yuga 3,000 + 300 + 300 = 3,600 divine years (= 1,296,000 human years) = 1 Tretā Yuga 2,000 + 200 + 200 = 2,400 divine years (= 864,000 human years) = 1 Dvāpara Yuga 1,000 + 100 + 100 = 1,200 divine years (= 432,000 human years) = 1 Kali Yuga 12,000 divine year = 4 Yugas (= 4,320,000 human years) = 1 Mahā-Yuga (also is equaled to 12000
Daiva (divine) Yuga) [2*12,000 = 24,000 divine year = 12000 revolutions of sun around its dual]
For Brahma[edit]
1000 Mahā-Yugas = 1 Kalpa = 1 day (day only) of Brahma
(2 Kalpas constitute a day and night of Brahma, 8.64 billion human years)
30 days of Brahma = 1 month of Brahma (259.2 billion human years) 12 months of Brahma = 1 year of Brahma (3.1104 trillion human years) 50 years of Brahma = 1 Parārdha 2 parardhas = 100 years of Brahma = 1 Para = 1 Mahā-Kalpa (the lifespan of Brahma)(311.04
One day of Brahma is divided into 10,000 parts called charaṇas. The charaṇas are divided as
follows:
The Four Yugas
4 charaṇas (1,728,000 solar years) Satya Yuga
3 charaṇas (1,296,000 solar years) Treta Yuga
2 charaṇas (864,000 solar years) Dvapara Yuga
1 charaṇas (432,000 solar years) Kali Yuga
Source: [2]
The cycle repeats itself, so altogether there are 1,000 cycles of Mahā-Yuga in one day of
Brahma.
One cycle of the above four Yugas is one Mahā-Yuga (4.32 million solar years) as is confirmed by the Gītā Śloka 8.17 (statement) "sahasra-yuga-paryantam ahar yad
brahmaṇo viduḥ rātriṁ yuga-sahasrāntāṁ te 'ho-rātra-vido janāḥ", meaning, a day of brahma is of 1000 Mahā-Yuga. Thus a day of Brahma, Kalpa, is of duration: 4.32 billion solar years. Two Kalpas constitute a day and night (Adhi Sandhi) of Brahma.
A Manvantara consists of 71 Mahā-Yuga (306,720,000 solar years). Each Manvantara is ruled by a Manu.
After each Manvantara follows one Saṃdhi Kāla of the same duration as a Kṛta Yuga (1,728,000 = 4 Charaṇas). (It is said that during a Saṃdhi Kāla, the entire earth is submerged in water.)
A Kalpa consists of a period of 4.32 Billion solar years followed by 14 Manvataras and Saṃdhi Kalas.
A day of Brahma equals
(14 times 71 Mahā-Yuga) + (15 × 4 Charaṇas)
= 994 Mahā-Yuga + (15 * 4800)
= 994 Mahā-Yuga + (72,000 years)[deva years] / 6 = 12,000[deva years] viz. one maha yuga.
= 994 Mahā-Yuga + 6 Mahā-Yuga
= 1,000 Mahā-Yuga
The Surya Siddhanta definition of timescales[edit]