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The Vedas (Sanskrit: वेद) are the main scriptural texts of Hinduism. They constitute the oldest layer of Sanskrit literature and are the oldest surviving scriptures amongst the various major world religions.

The Vedas are considered śruti ("that which is heard") by Hindus, and treated as apauruṣeya, which means "not of a man, superhuman, divine, authorless". Hindus consider the Vedas as eternal in nature.

There are four Vedas: the Rigveda, the Yajurveda, the Samaveda and the Atharvaveda. Each Veda has been subclassified into four major text types – the Samhitas (mantras and benedictions), the Aranyakas (text on rituals, ceremonies, sacrifices and symbolic-sacrifices), the Brahmanas (commentaries on rituals, ceremonies and sacrifices), and the Upanishads (text discussing meditation, philosophy and spiritual knowledge). The Upanishads are the foundation of Hindu philosophical thought and its diverse traditions. Of the Vedic corpus, they alone are widely known, and the central ideas of the Upanishads are at the spiritual core of the Hindus.

The various Indian philosophies and schools of Hinduism have taken differing positions on the Vedas. Schools such as Samkhya, Yoga, Nyaya, Vaisheshika, Mimamsa and Vedanta which accepted the Vedas as their scriptural authority are classified as "orthodox" (āstika) traditions of Hinduism. The Sramana traditions, such as Carvaka, Ajivika, Buddhism and Jainism, which did not regard the Vedas as authorities are referred to as "heterodox" or "non-orthodox" (nāstika) schools. The six orthodox schools of Hinduism and its two unorthodox schools (Carvaka and Ajivika) have their own interpretations of the Vedas, metaphysics and epistemology.