Where Brahma makes and Shiva dissolves, Vishnu holds. He is the preserver, the steadying power that keeps creation from sliding back into chaos — and in the great Vaishnava traditions he is not one god among three but the supreme reality itself, the source from whom even Brahma is born.

His iconography is a meditation on serene authority. Vishnu reclines upon Ananta-Shesha, the thousand-headed serpent whose name means "the endless remainder" — what is left when all worlds have dissolved, and the couch on which the Lord rests between cosmic cycles. He floats on the ocean of milk, deep blue as a rain-cloud, holding four emblems: the conch (shankha) whose sound is the primordial vibration, the discus (sudarshana chakra) that destroys evil, the mace (gada) of authority, and the lotus (padma) of creation and purity. Beside him stands Lakshmi (Shri), goddess of fortune, abundance, and grace, who is inseparable from him; some traditions say that wherever Vishnu is, Lakshmi is already there. His mount is Garuda, the mighty eagle, sworn enemy of serpents and the very emblem of the Vedas in flight.

But Vishnu's most beloved feature is his compassion in action. The Bhagavad Gita gives it unforgettable voice: "Whenever righteousness declines and unrighteousness rises, I come into being, age after age, to protect the good and restore dharma." These descents are the avatars — literally "crossings down." The classical list, the Dashavatara, numbers ten: the fish Matsya who saves the seeds of life from the flood; the tortoise Kurma; the boar Varaha; the man-lion Narasimha; the dwarf Vamana; Parashurama; the righteous prince Rama of the Ramayana; Krishna, teacher of the Gita; a ninth figure; and Kalki, yet to come, who will close the present dark age.

That ninth avatar is worth pausing on, for here the tradition genuinely divides. In many lists the ninth is the Buddha — Vishnu born to teach a path of compassion (or, in some pointed tellings, to mislead the wicked). But other traditions, especially in eastern and parts of northern India, name Balarama, Krishna's elder brother, as the ninth, and place Krishna himself as the eighth or even as the full Lord beyond the avatar scheme. The list is not fixed; the Bhagavata Purana even speaks of avatars as "innumerable, like streams from an inexhaustible lake." This fluidity is not a flaw but a feature: it lets a living tradition keep recognising the preserving hand of God in ever-new forms, always returning, always holding the world.