Śūnyatā in the context of "Perfection of Wisdom"

Prajñā (प्रज्ञा) or paññā (𑀧𑀜𑁆𑀜𑀸) is a Buddhist term often translated as "wisdom", "transcendental wisdom", "insight", "intelligence", or "understanding". It is described in Buddhist texts as the understanding of the true nature of phenomena. In the context of Buddhist meditation, it is the ability to understand the three characteristics of all things: anicca ("impermanence"), dukkha ("dissatisfaction" or "suffering"), and anattā ("non-self" or "egolessness"). Mahāyāna texts describe it as the understanding of śūnyatā ("emptiness"). It is part of the Threefold Training in Buddhism, and is one of the ten pāramīs of Theravāda Buddhism and one of the six Mahāyāna pāramitās.

The concept of "The Void" in philosophy encompasses the ideas of nothingness and emptiness, a notion that has been interpreted and debated across various schools of metaphysics. In ancient Greek philosophy, the Void was discussed by thinkers like Democritus, who saw it as a necessary space for atoms to move, thereby enabling the existence of matter. Contrasting this, Aristotle famously denied the existence of a true Void, arguing that nature inherently avoids a vacuum.

In Eastern philosophical traditions, the Void takes on significant spiritual and metaphysical meanings. In Buddhism, Śūnyatā refers to the emptiness inherent in all things, a fundamental concept in understanding the nature of reality. In Taoism, the Void is represented by Wuji, the undifferentiated state from which all existence emerges, embodying both the potential for creation and the absence of form.

Mahayana is the largest branch of Buddhism, followed by Theravada. It is a broad group of Buddhist traditions, texts, philosophies, and practices developed in ancient India (c. 1st century BCE onwards). Mahāyāna accepts the main scriptures and teachings of early Buddhism but also recognizes various doctrines and texts that are not accepted by Theravada Buddhism as original. These include the Mahāyāna sūtras and their emphasis on the bodhisattva path and Prajñāpāramitā. Vajrayana or Mantra traditions are a subset of Mahāyāna which makes use of numerous Tantric methods Vajrayānists consider to help achieve Buddhahood.

Mahāyāna also refers to the path of the bodhisattva striving to become a fully awakened Buddha for the benefit of all sentient beings, and is thus also called the "Bodhisattva Vehicle" (Bodhisattvayāna). Mahāyāna Buddhism generally sees the goal of becoming a Buddha through the bodhisattva path as being available to all and sees the state of the arhat as incomplete. Mahāyāna also includes numerous Buddhas and bodhisattvas that are not found in Theravada (such as Amitābha and Vairocana). Mahāyāna Buddhist philosophy also promotes unique theories, such as the Madhyamaka theory of emptiness (śūnyatā), the Vijñānavāda ("the doctrine of consciousness" also called "mind-only"), and the Buddha-nature teaching.

The Laṅkāvatāra Sūtra (Sanskrit: लङ्कावतारसूत्रम्, "Discourse of the Descent into Laṅkā", Standard Tibetan: ལང་ཀར་བཤེགས་པའི་མདོ་, Chinese: 入楞伽經) is a prominent Mahayana Buddhist sūtra. It is also titled Laṅkāvatāraratnasūtram (The Jewel Sutra of the Entry into Laṅkā, Gunabhadra's Chinese title: 楞伽阿跋多羅寶經 léngqié ābáduōluó bǎojīng) and Saddharmalaṅkāvatārasūtra (The Sutra on the Descent of the True Dharma into Laṅkā). A subtitle to the sutra found in some sources is "the heart of the words of all the Buddhas" (一切佛語心 yiqiefo yuxin, Sanskrit: sarvabuddhapravacanahṛdaya).

The Laṅkāvatāra recounts a teaching primarily between Gautama Buddha and a bodhisattva named Mahāmati ("Great Wisdom"). The sūtra is set in mythical Laṅkā, ruled by Rāvaṇa, the king of the rākṣasas. The Laṅkāvatāra discusses numerous Mahayana topics, such as Yogācāra philosophy of mind-only (cittamātra) and the three natures, the ālayavijñāna (store-house consciousness), the inner "disposition" (gotra), the buddha-nature, the luminous mind (prabhāsvaracitta), emptiness (śūnyatā) and vegetarianism.

Eastern esotericism is a term utilized by various scholars to describe a broad range of religious beliefs and practices originating from the Eastern world, characterized by esoteric, secretive, or occult elements. The classification of Eastern esotericism presents challenges, as it is influenced by varying geographical and cultural definitions of "Eastern" and "Western" contexts, particularly in relation to Islamic nations. The delineation of esotericism itself can vary among scholars, with some arguing that the concept is predominantly rooted in Western traditions. This perspective raises important questions regarding the applicability of a Western framework to non-Western practices, potentially leading to classifications that may not accurately reflect the complexities of these traditions. Conversely, other scholars propose a more globalized viewpoint, suggesting that comparable systems of secret knowledge and mystical practices exist across different cultures and warrant examination within a unified framework.

Despite these ongoing debates, the concept of Eastern esotericism has been adopted by many scholars as a relevant category for investigating the nuanced dimensions of spiritual life in various Eastern traditions. This includes elements found in Hinduism and Buddhism, where secret teachings, initiatory rites, and mystical experiences are significant. Additionally, Eastern esotericism encompasses a variety of ethnic religions and syncretic systems that integrate indigenous beliefs with other spiritual influences, thereby broadening the scope of study in this area. Overall, the term serves as a foundation for exploring the diverse and intricate landscape of esoteric thought and practice across the Eastern world.

Indra's net (also called Indra's jewels or Indra's pearls, Sanskrit Indrajāla, Chinese: 因陀羅網) is a metaphor used to illustrate the concepts of Śūnyatā (emptiness), pratītyasamutpāda (dependent origination), and interpenetration in Buddhist philosophy.

The metaphor's earliest known reference is found in the Atharva Veda. It was further developed by the Mahayana school in the 3rd century Buddhāvataṃsaka Sūtra and later by the Huayan school between the 6th and 8th centuries.