Hindu cosmology

Hindu cosmology. Hindu cosmology encompasses a diverse collection of metaphysical and mythological descriptions of the universe, its origins, and its structure, as articulated across millennia of Indian philosophy and sacred literature. These conceptions are not monolithic but vary significantly between different schools of thought, including Advaita Vedanta, Samkhya, and Vaishnavism. Foundational texts such as the Vedas, Upanishads, and epic narratives like the Mahabharata and Ramayana provide layered accounts, while the Puranas offer elaborate mythological cosmographies. Central to many of these models are the cyclical nature of time, a multilayered universe, and the interplay between the absolute reality of Brahman and the manifested world governed by Maya.

Overview and sources

The conceptual foundations are drawn from a vast corpus of ancient and medieval Sanskrit literature. The earliest speculations appear in the hymns of the Rigveda, particularly in the Nasadiya Sukta, which contemplates the universe's creation. Philosophical systematization is further developed in the Upanishads, such as the Chandogya Upanishad and Brihadaranyaka Upanishad, which explore the nature of Brahman and Atman. Narrative and mythological expansions are most vividly detailed in the Puranas, including the Vishnu Purana, Bhagavata Purana, and Shiva Purana, which describe cosmogony and cosmography in allegorical terms. Major philosophical schools, including Nyaya, Vaisheshika, and Yoga, also contributed distinct cosmological models integrated with their metaphysical principles.

Cosmography and lokas

Traditional cosmography often depicts a multilayered, egg-shaped universe known as the Brahmanda. This structure is frequently divided into three primary realms: the heavenly Svarga, the earthly Bhuloka, and the netherworld Patala. Elaborate descriptions, particularly in the Puranas, enumerate fourteen primary worlds or Loka, arranged in a vertical hierarchy. The seven upper worlds include, in ascending order, Bhuloka, Bhuvarloka, Svarloka, Maharloka, Janaloka, Tapoloka, and Satyaloka, the abode of Brahma. Below Bhuloka exist seven lower worlds, or Naraka, realms associated with different forms of existence. The entire system is often visualized as centered on the cosmic mountain Mount Meru, surrounded by continents like Jambudvipa and oceans.

Cosmogony and cycles of time

Hindu cosmogony presents multiple creation narratives, often describing periodic cycles of manifestation, sustenance, and dissolution. A fundamental concept is the day of Brahma, or Kalpa, a period of 4.32 billion human years, which sees the universe created and destroyed. Each Kalpa is divided into fourteen intervals called Manvantara, each ruled by a progenitor figure known as a Manu. The current Manu is Vaivasvata Manu. These immense time cycles are part of a grander four-age sequence, the Yuga cycle, comprising the Satya Yuga, Treta Yuga, Dvapara Yuga, and the current Kali Yuga. The entire cosmos ultimately emanates from and dissolves back into the supreme principle, Brahman, through the agency of the Trimurti: Brahma the creator, Vishnu the preserver, and Shiva the destroyer.

Cosmological beings and deities

The cosmological framework is populated by a vast hierarchy of beings and divine entities. At the apex of the manifested universe is the creator god Brahma, who emerges from a lotus stemming from the navel of Vishnu during each cycle of creation. The sustainer Vishnu is believed to incarnate in forms such as Rama and Krishna to restore Dharma. The destructive and regenerative aspect is embodied by Shiva, often associated with the cosmic dance of Nataraja. Other significant deities include the goddess Devi in forms like Durga and Lakshmi, and the sun god Surya. The universe is also inhabited by various classes of beings, including Deva, Asura, Yaksha, Gandharva, and Apsara, who inhabit different Loka.

Influence and comparisons

Hindu cosmological concepts have profoundly influenced the cultural, artistic, and scientific history of the Indian subcontinent. They are reflected in the precise astronomical calculations of ancient scholars like Aryabhata and Varahamihira, and in the architectural schematics of temples such as Angkor Wat and the Kandariya Mahadeva Temple. Philosophically, ideas of cosmic cycles and multilayered reality have invited comparison with other traditions, including the multiverse theories in Buddhist cosmology and the cyclical time in Jain cosmology. In the modern era, parallels are often drawn between concepts like the Brahmanda and the expanding universe theory, and between the vast time scales of the Yuga cycle and geological deep time, showcasing the tradition's enduring speculative reach.

Category:Hindu cosmology Category:Hindu philosophy Category:Indian astronomy