Page "End time" Paragraph 78

One Kalpa lasts 8. 64 billion years, illustrates the pattern of decline in the state of nature and civilization between periods of timelessness when Brahma ( Matter, mass ) regenerates the world of existence / reality.

Brahma has a lifespan of 311 Trillion, 40 Billion Years, then the universe will contract to a singularity and again will be evolved from the singularity.

As Hindus do not consider humans as special or noble creations of god, unlike some other religions, the wrong doings or such things committed by humans shall have no effects on the end of time, as the end of time as per Hinduism is purely a property of matter.

There are four yugs, or ages, in this process from complete purity to complete impurity.

The final is Kali Yuga, or the Dark Age, where civilization becomes spiritually degraded, human lives are shortened by violence and disease, and there is a general state of decay in nature.

This is the worst period before complete destruction which is then followed by a Golden Age.