Dashavatara, the 10 avatars of Vishnu, one of the principal deities in Hinduism. They represent the 10 times Vishnu descends to earth in order to restore cosmic order. Each of these incarnations has a particular mythology and is the object of devotion (bhakti). The list of avatars shows some variations across sects and regions.
Hinduism has three principal deities: Brahma, the creator; Shiva, the destroyer; and Vishnu, the preserver. The avatars of Vishnu are believed to descend to earth to empower the good and destroy evil, relieving the burden of the earth and restoring balance. In the Bhagavadgita, a holy scripture of Hinduism, verses 7 and 8 of chapter 4 refer to these avatars:
Whenever there is a decline of righteousness [dharma] and rise of unrighteousness then I send forth Myself. For the protection of the good, for the destruction of the wicked, and for the establishment of righteousness, I come into being from age to age.
The avatars are:
Krishna is considered the eighth avatar in most traditions. Traditions that omit Krishna typically consider Krishna, not Vishnu, as the source of all avatars. Balarama, a brother of Krishna, is considered the eighth avatar in some traditions. The Buddha (Gautama Buddha) is considered the ninth avatar in most traditions. The 10th avatar, the only one that has not appeared on earth yet, is Kalki, who is expected to appear at the end of the Kali Yuga, the end of the current age (yuga) in Hinduism, which will be followed by a new age.
Vishnu takes on the Matsya (“Fish” in Sanskrit) avatar to protect the knowledge and creatures of the world at the time of a great deluge. He appears, as a fish, to Manu and seeks protection. As Manu keeps the fish safe, the fish keeps growing in size, until Manu takes the fish to the ocean and realizes it is Vishnu himself. Vishnu informs Manu about an upcoming flood that will cause the destruction of the world, and he directs him to gather the sages and all creatures of the world and keep them safe on a boat. When the deluge begins, Matsya returns as a fish with a horn and yokes himself to the boat using Vasuki, the king of serpents, keeping them safe during the period of the deluge.
When the devas (gods) and asuras (demons) join hands and attempt to churn the Ocean of Milk to obtain the nectar of immortality, Mount Mandara, which they use as the churning shaft around which Vasuki is wound, starts to sink to the bottom of the ocean. Vishnu then takes on the form of Kurma (“Tortoise” in Sanskrit), the second avatar, to bear the weight of the mountain.
The third avatar is Varaha, the giant boar. When the demon Hiranyaksha abducts the Earth and takes her to the bottom of the cosmic ocean, Brahma focuses on Vishnu in his thought, and Vishnu then emerges from his nostril, rapidly growing in size to the boar Varaha. He battles and defeats Hiranyaksha before restoring the Earth to her rightful place.
Hiranyakashipu, the brother of Hiranyaksha, seeks to avenge his brother’s death, and, through severe penances, he gains a boon from Brahma. The boon ensures that he can be killed by neither man nor animal, neither indoors nor outdoors, neither at day nor at night, neither on the ground nor in the sky. He uses these powers to subjugate the gods and persecute worshippers of Vishnu. But his own son, Prahlada, grows to become a Vishnu worshipper, and Hiranyakashipu keeps trying to kill him, albeit in vain, as Prahlada is protected by Vishnu. Finally, Vishnu descends as Narasimha, half-man and half-lion (neither man nor animal), and kills Hiranyakashipu at the twilight hour (neither day nor night) on the threshold of his house by laying him across his lap and using his claws to disembowel him.
Vishnu appears as the fifth avatar, Vamana, a dwarf, to counter Bali, the grandson of Prahlada, who has used his boon-begotten powers to conquer the three worlds (heaven, earth, and the nether realm). One day Vamana visited the court of Bali and begged of him as much land as he could step over in three paces. The king laughingly granted the request. Assuming a gigantic form, Vamana with one step covered the whole earth, and with the second step the midworld between earth and heaven. As there was nowhere left to go, the demon king lowered his head and suggested Vamana place his foot on it for the promised third step. Vamana was pleased, and with the pressure of his foot he sent Bali below to rule the netherworld.
The sixth avatar is Parashurama, who is born to cleanse the world of Kshatriyas (warriors), who had begun to abuse their power. He first kills the king Kartavirya Arjuna, who had taken his father’s cow by force. When the king’s sons kill Parashurama’s father in revenge, he swears to kill all Kshatriyas on earth 21 times over. He is believed to be immortal and also to have been responsible for creating the Indian state of Kerala by throwing his axe into the sea, causing the waters to recede.
The seventh avatar is Rama, whose story is told in detail in the ancient Sanskrit epic Ramayana. Rama is considered to be the ideal man and the ideal of how a king should rule. Vishnu is born as Rama to kill the demon Ravana, who is terrorizing the earth. When Ravana abducts Rama’s wife, Sita, Rama takes an army to Lanka, the abode of Ravana, and slays him. He then returns to his kingdom with Sita. The day of their return is celebrated in parts of India as the festival of Diwali.
The eighth avatar is widely acknowledged to be Krishna. Krishna is born to the Yadava clan as the eighth son of Devaki and Vasudeva. His maternal uncle Kamsa, the primary antagonist for this avatar, imprisons his sister and kills her first six sons. Krishna is secretly taken to the village of Gokul and fostered with Nanda, growing up there with his elder brother Balarama (the seventh son of Devaki, also miraculously saved). He grows up and slays Kamsa, restoring his grandfather Ugrasena to the throne. He then defeats many other evil kings and helps the Pandavas defeat their cousins the Kauravas (a story covered in much more detail in the Sanskrit epic poem Mahabharata). Krishna is also a mainstay in the Bhagavadgita, which occupies chapters 23 to 40 of book 6 of the Mahabharata and is composed in the form of a dialogue between Prince Arjuna and Krishna. Krishna’s elder brother Balarama is considered an avatar of Shesha, the celestial serpent who is Vishnu’s mount. But some traditions consider Balarama to be the eighth avatar and Krishna the ninth.
The ninth avatar is considered to be Gautama Buddha, the founder of Buddhism, who is portrayed as a preacher who helped preach nonviolence and reform Hinduism as it then was. The introduction of the Buddha as the ninth avatar is first documented during the Gupta empire (4th to 6th century ce), a period when Hinduism was losing ground in India to Buddhism and Jainism. The addition of the Buddha as an avatar may represent an attempt to adapt the positive aspects of Buddhism into Hinduism and reintegrate Buddhists into Hinduism. Debate still continues over whether the Buddha should be included in the list of avatars.
The final avatar of Vishnu is Kalki, who will appear at the end of the current age. Kalki is depicted as sitting on a white horse and with a drawn sword, and he will come into being to eradicate all evil in the world and initiate a new age of existence.
The progression of the avatars from relatively simple life-forms (e.g., a fish) to more complex ones has led to some interpretations of the Dashavatara as the expression of a form of Darwinian evolution, which, in turn, has been used to rationalize Hinduism through the lens of modern science. This view, however, has drawn wide criticism, not least for its inherent implication that earlier avatars are inferior to later ones, which is contrary to the belief that all avatars are manifestations of Vishnu.