Let us start from the known.
1 day, 30 days, 12 months,
360 days = 1 human year HY
1 HY = 1 day for devas
360 deva days = 1 deva year
= 360 human years
1200 deva years = kaliyug
= 1200 * 360 = 4,32,000 HY
Kaliyug – 1 * 4,32,000
Dwapar – 2 * 4,32,000
Tretayug – 3 * 4,32,000
Satya yug – 4 * 4,32,000
1 Chaturyug = (4+3+2+1)
= 10 * 4,32,000 = 43,20,000 HY
= 1 Maha yuga
Brahma’s lifetime:
1000 chaturyug = 1 kalpa
= 1 Brahma day
2000 Chaturyug
= 1 Brahma day (& night)
= 2 kalpas
360 Brahma days = 1 Brahma year
100 years = 1 Brahma lifetime
= 1 Maha Kalpa
720 kalpas in a Brahma year,
i.e. (360 * 2), so 720
= 72,000 kalpas in Brahma lifetime
Manvantara:
1 Manvatara
= 1000/14 = 71.4 chaturyug
Between every Manvantara there is a juncture known as Sadhya which lasts for 4 * (4,32,000) years.
“Each Manvantara is followed by a deluge, which destroys the existing continents and swallows up all living beings, except the few who are preserved for the repeopling of the earth.”
So, 1 Brahma day
= 14 Manvataras + 15 sadhyas
All the 4 yugas keep repeating in a Manvatara, (around 71 times).
As 1 cycle is a Mahayuga, we are now in 28th Mahayuga in the current year of Brahma (51 years now).
Pralaya:
During the day time of Brahma creation happens and during night it is pralaya.
Naimithika pralaya:
At the end of the kalpa, there will be drought for 100 years. Sun will burn everything and evaporate all water from the oceans. The four worlds (Bhu, Bhuva, Suva, Maha and the 7 under Naga worlds) will completely burn down by a fire called samvartaka fire. Then the samvartaka clouds will unleash torrential rains and everything will be destroyed and dissolved into water. Brahma will go to sleep for a time equivalent to 1000 chaturyugas before waking up to create again. This is called Naimithika pralaya.
Praakritika pralaya:
At the end of Brahma’s period (lifetime), all the worlds are destroyed, each tatva will dissolve into the higher one ie:- prithivi together with subtle gandha tanmatra into jala and so on until only Paramatma remain in a state of equilibrium. This is called prakritika pralaya.
So, yugas (all 4 in order) should repeat 1000 times in 1 day of brahma. For example, Lord Rama will come in every Tretayuga, the Ramayana which we read is of this Mahayuga, but we don’t know what had happened in previous Mahayuga(s).
Kakabhushundi in Yoga Vasishtam, gave a reference by telling he saw Lord Rama 11 times on earth with different outcomes and seen Mahabharat 16 times with different results, but, after seeing Daksha Yagya twice, it ended the same way each time!
Ramayana occurs in the 24th Tretayuga of one kalpa. Mahabharata occurs in the 28th Dwaparayuga of one kalpa.
So, Mahabharata and the Ramayana happened in the current Vaivasvata Manvantara, in a day of Brahma.
नारायण अखिल गुरो भगवन् नमस्ते ।
kNOw-me 