Vishnu is one of the principal deities in Hinduism, known as the Preserver and Sustainer of the Universe within the Trimurti, the sacred trinity that also includes Brahma (the Creator) and Shiva (the Destroyer). He is associated with cosmic order (dharma), compassion, and protection.
Vishnu is often depicted with blue skin, symbolizing his infinite nature like the sky and ocean, and four arms holding a conch (shankha), discus (chakra), mace (gada), and lotus (padma). These items represent his divine attributes: the conch symbolizes sound and communication; the discus, the mind and protection; the mace, strength and power; and the lotus, purity and spiritual awakening.
He rests on the cosmic serpent Ananta (or Shesha) and is often shown in serene repose on the ocean of milk, with his consort, the goddess Lakshmi (goddess of wealth and fortune), attending to him. This reflects his eternal and unchanging nature amidst the ever-changing cosmos.
Vishnu incarnates on Earth through avatars to restore balance whenever dharma is threatened. The most well-known of his avatars are Rama, Krishna, and Buddha (in some traditions). There are traditionally ten major avatars known as the Dashavatara.
Energetically, Vishnu embodies Satva guna—purity, harmony, and balance—and represents the sustaining life force that maintains order in the universe. Devotees seek his grace for protection, guidance, and liberation (moksha). His mantras, such as “Om Namo Narayanaya,” are used in spiritual practice to attune to his divine presence.