The Scale of the Universe according to Hindu cosmology is a complex and multifaceted system
One of its central tenets is the idea of “The scale of the Universe” is a vast and cyclical system. According to Hindu texts, the universe is created and destroyed in a repeating cycle, with each cycle lasting for a period of time known as a maha-kalpa.
A maha-kalpa is divided into 14 manvantaras or ages of the world. Each manvantara is ruled by a different Manu, or progenitor of humanity. The current manvantara is known as the Vaivasvata Manvantara, and it is said to be the seventh in the current cycle.
Within each manvantara, there are 4,320,000,000 years of creation, followed by 4,320,000,000 years of destruction. This cycle of creation and destruction is known as a Kalpa.
At the end of a Kalpa, the universe is destroyed in a great fire. All of the worlds and all of the beings in the universe are destroyed, and the only thing that remains is the primal matter, known as Prakriti.
After a period of time, Prakriti begins to recombine, and the universe is reborn. This process of creation and destruction is said to have been going on for an eternity, and it will continue to go on for an eternity.
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