Śūnyatā (ʃuːnˈjɑːtɑː ; śūnyatā; suññatā), translated most often as "emptiness", "vacuity", and sometimes "voidness", or "nothingness" is an Indian philosophical concept. Within Hinduism, Jainism, Buddhism, and other philosophical strands, the concept has multiple meanings depending on its doctrinal context. It is either an ontological feature of reality, a meditative state, or a phenomenological analysis of experience. In Theravāda Buddhism, suññatā often refers to the non-self (Pāli: anattā, Sanskrit: anātman) nature of the five aggregates of experience and the six sense spheres. Suññatā is also often used to refer to a meditative state or experience. In Mahāyāna Buddhism, śūnyatā refers to the tenet that "all things are empty of intrinsic existence and nature (svabhava)", but may also refer to the Buddha-nature teachings and primordial or empty awareness, as in Dzogchen, Shentong, or Chan. "Śūnyatā" (Sanskrit) is usually translated as "devoidness", "emptiness", "hollow", "hollowness", "voidness". It is the noun form of the adjective śūnya, plus -tā: śūnya, in the context of buddha dharma, primarily means "empty", or "void," but also means "zero," and "nothing," and derives from the root śvi, meaning "hollow" tā is a suffix denoting a quality or state of being, equivalent to English "-ness" The concept of śūnyatā as "emptiness" is related to the concept of anatta in early Buddhism. Over time, many different philosophical schools or tenet-systems (Sanskrit: siddhānta) have developed within Buddhism in an effort to explain the exact philosophical meaning of emptiness. After the Buddha, emptiness was further developed by the Abhidharma schools, Nāgārjuna and the Mādhyamaka school, an early Mahāyāna school. Emptiness ("positively" interpreted) is also an important element of the Buddha-nature literature, which played a formative role in the evolution of subsequent Mahāyāna doctrine and practice. Pre-sectarian Buddhism Sati (Buddhism) The Pāli Canon uses the term śūnyatā ("emptiness") in three ways: "(1) as a meditative dwelling, (2) as an attribute of objects, and (3) as a type of awareness-release.