The Buddha in the context of "Noble Eightfold Path"

Buddhism, also known as Buddha-dharma and Dharmavinaya, is an Indian religion and philosophy based on teachings attributed to the Buddha, a śramaṇa and religious teacher who lived in the 6th or 5th century BCE. It is the world's fourth-largest religion, with about 320 million followers, known as Buddhists, who comprise 4.1% of the global population. It arose in the eastern Gangetic plain as a śramaṇa movement in the 5th century BCE, and gradually spread throughout much of Asia. Buddhism has subsequently played a major role in Asian culture and spirituality, eventually spreading to the West in the 20th century.

According to tradition, the Buddha instructed his followers in a path of cultivation that leads to awakening and full liberation from dukkha (lit. 'suffering'; 'unease', 'unsatisfactoriness') by attaining nirvana, the 'blowing out' (extinguishing) of the passions. He regarded this path as a Middle Way between extreme asceticism and sensory indulgence, and also between the extremes of eternalism and nihilism. Teaching that dukkha arises alongside attachment or clinging, the Buddha advised meditation practices and ethical precepts, rooted in non-harming. Widely observed teachings include the Four Noble Truths, the Noble Eightfold Path, and the doctrines of dependent origination, karma, and the three marks of existence. Other commonly observed elements include the Triple Gem, the taking of monastic vows, and the cultivation of perfections (pāramitā).

Buddhists (listen) are people who adhere to Buddhism, a religious and philosophical tradition founded by Siddhartha Gautama (the Buddha) in the 5th–4th century BCE in India. Buddhist identity can be religious, cultural, or secular, encompassing monastic practitioners, lay followers, and individuals who adopt meditation and ethical practices without formal rituals.

The term originates from the Sanskrit word Bauddha (बौद्ध), meaning "follower of the Buddha", which itself is derived from Buddha (बुद्ध), meaning "the Awakened One." In ancient India, followers of the Buddha identified themselves as Sakyans (Sakyabhiksu), derived from the name of the Buddha's clan, the Sakyas. The English term Buddhist emerged in the early 19th century, combining Buddha with the suffix "-ist," denoting a follower or adherent. The first recorded use of Buddhist in English was in 1810. In descending order, the percentage of people who identify as Buddhists on each continental landmass stands at: the vast majority (about 98%) in Asia and the Pacific, around 1% in Europe, and less than 1% in Africa, Oceania, and the Americas collectively.

Bhakti (Sanskrit: भक्ति; Pali: bhatti) is a concept common in Indian religions which means attachment, fondness for, devotion to, trust, homage, worship, piety, faith, or love. In Indian religions, it may refer to loving devotion for a personal God (like Krishna or Devi), a formless ultimate reality (like Nirguna Brahman or the Sikh God) or an enlightened being (like a Buddha, a bodhisattva, or a guru). Bhakti is often a deeply emotional devotion based on a relationship between a devotee and the object of devotion. A devotee is a bhakta or bhakt.

One of the earliest appearances of the concept is found in the early Buddhist Theragatha (Verses of the Elders) through the term bhatti. Early texts such as the Shvetashvatara Upanishad and the Bhagavad Gita, describe bhakti as contemplating God as a form of yoga.

Dhyāna (Sanskrit: ध्यान) in Hinduism means meditation and contemplation. Dhyana is taken up in Yoga practices, and is a means to samadhi and self-knowledge.

The various concepts of dhyana and its practice originated in the Sramanic movement of ancient India, which started before the 6th century BCE (pre-Buddha, pre-Mahavira), and the practice has been influential within the diverse traditions of Hinduism. It is, in Hinduism, a part of a self-directed awareness and unifying Yoga process by which the yogi realizes Self (Atman, soul), one's relationship with other living beings, and the Ultimate Reality. Dhyana is also part of other Indian religions such as Buddhism and Jainism. Several other traditions introduce unique aspects and context to Dhyana, and mutually influence each other.

Buddhist meditation is the practice of meditation in Buddhism. The closest words for meditation in the classical languages of Buddhism are bhāvanā ("mental development") and jhāna/dhyāna (a state of meditative absorption resulting in a calm and luminous mind).

Buddhists pursue meditation as part of the path toward liberation from defilements (kleshas) and clinging and craving (upādāna), also called awakening, which results in the attainment of nirvana. The Indian Buddhist schools relied on numerous meditation techniques to attain meditative absorption, some of which remain influential in certain modern schools of Buddhism. Classic Buddhist meditations include anapanasati (mindfulness of breathing), asubha bhavana ("reflections on repulsiveness"); reflection on pratityasamutpada (dependent origination); anussati (recollections, including anapanasati), the four foundations of mindfulness, and the divine abodes (including loving-kindness and compassion). These techniques aim to develop various qualities including equanimity, sati (mindfulness), samadhi (unification of mind) c.q. samatha (tranquility) and vipassanā (insight); and are also said to lead to abhijñā (supramundane powers). These meditation techniques are preceded by and combined with practices which aid this development, such as moral restraint and right effort to develop wholesome states of mind.

In Buddhism, the Four Noble Truths (Sanskrit: चत्वार्यार्यसत्यान, romanized: catvāryāryasatyāni; Pali: cattāri ariyasaccāni; "The Four arya satya") are "the truths of the noble one (the Buddha)," a statement of how things really are when they are seen correctly. The four truths are

• dukkha (not being at ease, 'suffering', from dush-stha, standing unstable). Dukkha is an innate characteristic of transient existence; nothing is forever, this is painful;
• samudaya (origin, arising, combination; 'cause'): together with this transient world and its pain, there is also thirst (desire, longing, craving) for and attachment to this transient, unsatisfactory existence;
• nirodha (cessation, ending, confinement): the attachment to this transient world and its pain can be severed or contained by the confinement or letting go of this craving;
• marga (road, path, way): the Noble Eightfold Path is the path leading to the confinement of this desire and attachment, and the release from dukkha.

The four truths appear in many grammatical forms in the ancient Buddhist texts, and are traditionally identified as the first teaching given by the Buddha. While often called one of the most important teachings in Buddhism, they have both a symbolic and a propositional function. Symbolically, they represent the awakening and liberation of the Buddha, and of the potential for his followers to reach the same liberation and freedom that he did. As propositions, the Four Truths are a conceptual framework that appear in the Pali canon and early Hybrid Sanskrit Buddhist scriptures, as a part of the broader "network of teachings" (the "dhamma matrix"), which have to be taken together. They provide a conceptual framework for introducing and explaining Buddhist thought, which has to be personally understood or "experienced".

Manichaeism (/ˌmænɪˈkiːɪzəm/; in Persian: آئین مانی, romanized: Āʾīn-i Mānī; Chinese: 摩尼教; pinyin: Móníjiào) was a major world religion founded in the third century CE by the Parthian Iranian prophet Mani (C.E. 216–274) in the Sasanian Empire. Variably described as a Christian heresy and a Gnostic movement, Manichaeism was an organized and doctrinal religious tradition in its own right. It taught an elaborate dualistic cosmology describing the struggle between a good spiritual world of light, and an evil material world of darkness. Through an ongoing process that takes place in human history, light is gradually removed from the world of matter and returned to the world of the divine.

Mani's teachings were intended to integrate, succeed, and surpass the "partial truths" of various prior faiths and belief systems, including Platonism, Christianity, Zoroastrianism, Buddhism, Marcionism, Hellenistic and Rabbinic Judaism, Gnostic movements, Ancient Greek religion, Babylonian and other Mesopotamian religions, and mystery cults. Some forms of Manichaeism see Mani as the final prophet after Zoroaster, the Buddha, and Jesus. The Manichaean scriptural canon includes seven works attributed to Mani, written originally in Syriac. Manichaean sacramental rites included prayers, almsgiving, and fasting. Communal life centered on confession and the singing of hymns.

Vajrayāna (Sanskrit: वज्रयान, lit. 'Diamond Vehicle or Thunderbolt Vehicle'), otherwise known as Mantrayāna ("Mantra Vehicle"), Guhyamantrayāna ("Secret Mantra Vehicle"), Tantrayāna ("Tantra Vehicle"), Indo-Tibetan Buddhism, Tantric Buddhism, and Esoteric Buddhism, is a Mahāyāna Buddhist tradition that emphasizes esoteric practices and rituals aimed at rapid spiritual awakening. Emerging between the 5th and 7th centuries CE in medieval India, Vajrayāna Buddhism incorporates a range of techniques, including the use of mantras (sacred sounds), dhāraṇīs (mnemonic codes), mudrās (symbolic hand gestures), mandalās (spiritual diagrams), and the visualization of deities and Buddhas. These practices are designed to transform ordinary experiences into spiritual paths toward enlightenment and liberation, often by engaging with aspects of desire and aversion in a ritualized context.

A distinctive feature of Vajrayāna Buddhism is its emphasis on esoteric transmission, where teachings are passed directly from teacher (guru or vajrācārya) to student through initiation ceremonies. Tradition asserts that these teachings have been passed down through an unbroken lineage going back to the historical Buddha (c. the 5th century BCE), sometimes via other Buddhas or bodhisattvas (e.g., Vajrapani). This lineage-based transmission ensures the preservation of the purity and effectiveness of the teachings. Practitioners often engage in deity yoga, a meditative practice where one visualizes oneself as a deity embodying enlightened qualities to transform one's perception of reality. The tradition also acknowledges the role of feminine energy, venerating female Buddhas and ḍākiṇīs (spiritual beings), and sometimes incorporates practices that challenge conventional norms to transcend dualistic thinking.