Lord Vishnu's Kalki avatar is considered the tenth and final incarnation in Hinduism. This avatar has not yet manifested and is prophesied to appear at the end of the Kali Yuga. The purpose of the Kalki avatar is to end adharma (unrighteousness) and injustice and re-establish dharma (righteousness).

The Puranas mention that at the end of the Kali Yuga, when adharma and injustice will be at their peak, Lord Vishnu will incarnate as Kalki. The name Kalki means 'destroyer of darkness' or 'one who ends the Kali Yuga'. This avatar will be for the re-establishment of truth and righteousness.

According to the Puranas, Kalki will be born at the end of the Kali Yuga. He will be born into the house of a Brahmin named Vishnuyasha, who resides in a village called Shambhala. The fact that Kalki will be born into a Brahmin family indicates that he will symbolize knowledge, dharma, and truth.

Kalki will ride a white horse and will carry a sword that shines like lightning. This sword will destroy adharma and injustice. The white horse symbolizes dharma and purity.

When the Kalki avatar manifests, he will use his weapon to annihilate all unrighteous, unjust, and wicked people. He will free the earth from sin and chaos and re-establish dharma. With his manifestation, the Kali Yuga will end and the Satya Yuga will begin.

The main purpose of the Kalki avatar is to re-establish dharma, truth, and justice. He will usher in a new era where truth, dharma, and love will prevail. His arrival will bring a new life to humanity, and all beings will live in peace and prosperity.

The Kalki avatar of Lord Vishnu holds an important message for the future in Hinduism. It teaches us that no matter how much darkness prevails, ultimately truth and dharma triumph. The symbolic meaning of the Kalki avatar is that in every age, when adharma and injustice reach their peak, the Lord himself incarnates to end them and re-establish dharma.

The story of Lord Vishnu's Kalki avatar inspires us that the end of adharma and injustice is certain and there is always hope for the re-establishment of dharma, truth, and justice. The arrival of the Kalki avatar will mark the beginning of a new era, providing humanity with a new direction and energy.