Hindu eschatology is linked in the Vaishnavite tradition to the figure of Kalki, or the tenth and last avatar of Vishnu or Shiva names of the Supreme Being in Hinduism and before the age draws to a close, and Harihara simultaneously dissolves and regenerates the universe.
The current period is Kali Yuga, the last of four Yuga that make up the current age. Each period has seen a progressive decline in morality, to the point that in Kali Yuga quarrel and hypocrisy are norm. In Hinduism, time is cyclic, consisting of cycles or "kalpas". Each kalpa lasts 4.1–8.2 billion years, which is a period of one full day and night for Brahma, who in turn will live for 311 trillion, 30 billion Years. The cycle of birth, growth, decay, and renewal at the individual level finds its echo in the cosmic order, yet is affected by the vagaries of divine intervention in Vaishnavism. Some Shaivites hold the view that he is incessantly destroying and creating the world.
After this larger cycle, all of creation will contract to a singularity and then again will expand from that single point, as the ages continue in a religious fractal pattern.
Within the current kalpa, there are four yugas, or epochs, that encompass the evolution of this specific cycle. These ages encompass a beginning of complete purity to a descent into total decay.
Kali Yuga, the last of the four ages, is the one in which we currently reside. This epoch has been foretold to be characterized by impiety, violence, and decay. As written in the Vishnu Purana in 100 BCE:
Social status depends not upon your accomplishments, but in the ownership of property; wealth is now the source of virtue; passion and luxure are the sole bonds between spouses; falsity and lying are the conditions of success in life; sexuality is the sole source of human enjoyment; religion, a superficial and empty ritual, is confused with spirituality