Hindu texts 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 a collection of Hindu texts which contain some of the central philosophical concepts of Hinduism. The Upanishads are commonly referred to as "Vedānta", variously interpreted to mean either the "last chapters, parts of the Veda" or "the object, the highest purpose of the Veda".
Vedas of the Vedas that survive in the modern times are likely the version existing in about the 16th century AD. The canonical division of the Vedas is fourfold (") viz., Of these, the first three were the principal original division, also called """; that is, "the triple science" of reciting hymns (Rigveda), performing sacrifices (Yajurveda), and chanting songs (Samaveda). The Rigveda is the oldest work, which Witzel states are probably from the period of 1900 to 1100 BCE. Witzel, also notes that it is the Vedic period itself, where incipient lists divide the Vedic texts into three (trayī) or four