Emptiness: 3 definitions
Introduction:
Emptiness means something in Buddhism, Pali, Hinduism, Sanskrit. If you want to know the exact meaning, history, etymology or English translation of this term then check out the descriptions on this page. Add your comment or reference to a book if you want to contribute to this summary article.
Images (photo gallery)
In Hinduism
Yoga (school of philosophy)
Source: ORA: Amanaska (king of all yogas): A Critical Edition and Annotated Translation by Jason BirchThe Emptiness (of all states) is denoted by the Sanskrit term Śūnya, according to the Amanaska Yoga treatise dealing with meditation, absorption, yogic powers and liberation.—Accordingly, as Īśvara says to Vāmadeva: “[...] [The Yogin] who has [attained] the natural [no-mind state] is instantly motionless as a result of having realized the emptiness of all states (akhilabhāva-śūnya), resides in his own self, his hands, feet and sense organs are all inactive and relaxed, and he is free of disturbances. Because he is one in whom breathing has radically ceased, he is seen by those standing close [to be] like an inanimate piece of wood and like the [steady flame of] a lamp situated in a windless [place]. [...]”.

Yoga is originally considered a branch of Hindu philosophy (astika), but both ancient and modern Yoga combine the physical, mental and spiritual. Yoga teaches various physical techniques also known as āsanas (postures), used for various purposes (eg., meditation, contemplation, relaxation).
In Buddhism
Tibetan Buddhism (Vajrayana or tantric Buddhism)
Source: Google Books: The Crystal Mirror of Philosophical Systems1) Emptiness in Tibetan refers to the “Three Doors” which are known in Tibetan as thar pa'i sgo gsum.—According to the Laṅkāvatāra-sūtra (“Descent to Lanka Sutra”): “[...] Thusly, Mahāmati, the Tathāgatas, in order to attract those who cling to the self propounded by the extremists, showed the essential by teaching Buddha nature. How can those whose thought has fallen into the conceptual view that the absolutely unreal self is real come to possess the thought that settles in the domain of the Three Doors of Liberation [e.g., emptiness], and completely awaken to unsurpassed, complete, and perfect enlightenment? Mahāmati, it is for the sake of that, that the Tathāgatas taught Buddha nature. [...]”.
2) Emptiness (in Tibetan: stong pa nyid; Sanskrit: śūnyatā) — The central term in Mahayana philosophy, especially the Madhyamaka school, and the truth that must be realized if enlightenment is to be attained. A radicalization and universalization of the early Buddhist idea of no-self, emptiness is the true nature of all entities and concepts in both samsara and nirvana, variously taken to be the absence of inherent existence, the enlightened mind's lack of samsaric dharmas, or external objects' nondifference from the mind that perceives them
Source: OSU Press: Cakrasamvara SamadhiEmptiness (in Sanskrit: Śūnyatā) refers to the primary teaching of the Prajñāpāramitā ("The Perfection of Wisdom") of Mahāyāna Buddhism.—The doctrine of "emptiness" (śūnyatā) is based upon the doctrines of no-self and dependent origination. The doctrine of emptiness states that no thing exists independently in and of itself, there is no independent subject or object, and all things are interconnected, making up a universal oneness. Even the idea of emptiness as an independent concept cannot exist within emptiness, which excludes any extreme nihilistic interpretations of nothingness, still allowing for relative subjects and objects to exist within the universal oneness. Relative subjects and objects allow us to make sense of reality, with our limited faculties, the five aggregates. However, once we experience a realization of emptiness, we understand that our perception of reality as separate subjects and objects is not real. One can say to oneself, "I am that", and let go of the habitual need to grasp and cling to things, and overcome the suffering of separateness, while at the same time still be able to operate within the perceived reality of a world with relative subjects and objects.
Emptiness is the primary doctrine of Nāgārjuna, who founded the Mādhyamika school, which means "The Middle Way", which teaches that the nature of reality is not governed by extremes, either or solutions, or binary absolutes, but rather by an infinite spectrum of possibilities in between, which can only be discerned through discriminating wisdom, (prajñā).

Tibetan Buddhism includes schools such as Nyingma, Kadampa, Kagyu and Gelug. Their primary canon of literature is divided in two broad categories: The Kangyur, which consists of Buddha’s words, and the Tengyur, which includes commentaries from various sources. Esotericism and tantra techniques (vajrayāna) are collected indepently.
See also (Relevant definitions)
Full-text (+634): Shunyata, Shunyatashunyata, Twenty Emptinesses, Atyantashunyata, Anavakarashunyata, Asamskritashunyata, Samskritashunyata, Svabhavashunyata, Abhavashunyata, Bahirdhashunyata, Adhyatmabahirdhashunyata, Paramarthashunyata, Anavaragrashunyata, Shunya, Adhyatmashunyata, Sarvadharmashunyata, Mahashunyata, Prakritishunyata, Sarvadharma, Shodashashunyata.
Relevant text
Search found 172 books and stories containing Emptiness; (plurals include: Emptinesses). You can also click to the full overview containing English textual excerpts. Below are direct links for the most relevant articles:
Maha Prajnaparamita Sastra (by Gelongma Karma Migme Chödrön)
Emptiness 4: Emptiness of Emptiness (śūnyatāśūnyatā) < [Chapter XLVIII - The Eighteen Emptinesses]
IV. The emptinesses (śūnyatā) in the great Prajñāpāramitā-sūtras < [Note on emptiness (śūnyatā)]
Emptinesses 16 to 18 < [Chapter XLVIII - The Eighteen Emptinesses]
The Six Yogas of Naropa (by C. A. Musés)
Chapter Seven (b): The Instruction on Recognizing the Signs of Death
Chapter Seven (a): On the Bardo Realm
Hevajra Tantra (analytical study) (by Seung Ho Nam)
4. The Cittamatra View of Emptiness < [Chapter 1 - Tantric Buddhism]
3. The Theory of Emptiness in the Madhyamika Doctrine < [Chapter 1 - Tantric Buddhism]
5. Vajrayana: A Fusion of Emptiness and Deity Yoga < [Chapter 1 - Tantric Buddhism]
Garga Samhita (English) (by Danavir Goswami)
Verse 6.14.26 < [Chapter 14 - The Glories of Ratnākara, Raivata, and Kācala]
The Great Chariot (by Longchenpa)
Part 10b.6) The six perfections: Prajña that realizes the natural state < [B. the extensive explanation of arousing bodhicitta]
Part 1 - How to train in the middle way free from extremes < [D. Abandoning]
Part 2a - By knowing or not knowing what we are < [B. The extended explanation of the particulars]
Shurangama Sutra (with commentary) (English) (by Hsuan Hua)
The nature of the emptiness element < [Chapter 6 - The Seven Elements Are All-Pervasive]
The nature of the earth element < [Chapter 6 - The Seven Elements Are All-Pervasive]
Treasury of Emptiness Bodhisattva: the emptiness element < [Chapter 2 - Twenty-five Means to Enlightenment]