Saṃsāra (Buddhism) in the context of "Shakyamuni Buddha"

Saṃsāra (Devanagari: संसार) is a Sanskrit word that means "wandering" as well as "world," wherein the term connotes "cyclic change" or, less formally, "running around in circles." Saṃsāra is referred to with terms or phrases such as transmigration/reincarnation, karmic cycle, or Punarjanman, and "cycle of aimless drifting, wandering or mundane existence". When related to the theory of karma, it is the cycle of death and rebirth.

The "cyclicity of all life, matter, and existence" is a fundamental belief of most Indian religions. The concept of saṃsāra has roots in the post-Vedic literature; the theory is not discussed in the Vedas themselves. It appears in developed form, but without mechanistic details, in the early Upanishads. The full exposition of the saṃsāra doctrine is found in early Buddhism and Jainism, as well as in various schools of Hindu philosophy. The saṃsāra doctrine is tied to the karma theory of Hinduism, and the liberation from saṃsāra has been at the core of the spiritual quest of Indian traditions, as well as their internal disagreements. The liberation from saṃsāra is called Moksha, Nirvāṇa, Mukti, or Kaivalya.

Siddhartha Gautama, most commonly referred to as the Buddha (lit. 'the awakened one'), was a wandering ascetic and religious teacher who lived in South Asia during the 6th or 5th century BCE and founded Buddhism. According to Buddhist legends, he was born in Lumbini, in what is now Nepal, to royal parents of the Shakya clan, but renounced his home life to live as a wandering ascetic. After leading a life of mendicancy, asceticism, and meditation, he attained nirvana at Bodh Gaya in what is now India. The Buddha then wandered through the lower Indo-Gangetic Plain, teaching and building a monastic order (sangha). Buddhist tradition holds he died in Kushinagar and reached parinirvana ("final release from conditioned existence").

According to Buddhist tradition, the Buddha taught a Middle Way between sensual indulgence and severe asceticism, leading to freedom from ignorance, craving, rebirth, and suffering. His core teachings are summarised in the Four Noble Truths and the Noble Eightfold Path, a training of the mind that includes ethical training and kindness toward others, and meditative practices such as sense restraint, mindfulness, dhyana (meditation proper). Another key element of his teachings are the concepts of the five skandhas and dependent origination, describing how all dharmas (both mental states and concrete 'things') come into being, and cease to be, depending on other dharmas, lacking an existence on their own (svabhava).

Nirvana or nibbana (Sanskrit: निर्वाण; IAST: nirvāṇa; Pali: nibbāna) is the extinguishing of the passions, the "blowing out" or "quenching" of the activity of the grasping mind and its related suffering, stresses, and unease. Nirvana is the goal of many Buddhist paths, and leads to the soteriological release from dukkha ('suffering') and rebirths in saṃsāra. Nirvana is part of the Third Truth on "cessation of dukkha" in the Four Noble Truths, and the "summum bonum of Buddhism and goal of the Eightfold Path."

In all forms of Buddhism, Nirvana is regarded as the highest or supreme religious goal. It is often described as the unconditioned or uncompounded (Skt.: asaṃskṛta, Pali: asankhata), meaning it is beyond all forms of conditionality — not subject to change, decay, or the limitations of time and space. Nirvana is typically seen as being outside the realm of dependent arising (pratītyasamutpāda), representing a truth that transcends cause and effect, as well as all conventional dualities such as existence and non-existence, or life and death. Nirvana is also said to transcend all conceptual frameworks, being beyond the grasp of ordinary human perception.

Pratītyasamutpāda (Sanskrit: प्रतीत्यसमुत्पाद, Pāli: paṭiccasamuppāda), commonly translated as dependent origination, or dependent arising, is a key doctrine in Buddhism shared by all schools of Buddhism. It states that all dharmas (phenomena) arise in dependence upon other dharmas: "if this exists, that exists; if this ceases to exist, that also ceases to exist". The basic principle is that all things (dharmas, phenomena, principles) arise in dependence upon other things.

The doctrine includes depictions of the arising of suffering (anuloma-paṭiccasamuppāda, "with the grain", forward conditionality) and depictions of how the chain can be reversed (paṭiloma-paṭiccasamuppāda, "against the grain", reverse conditionality). These processes are expressed in various lists of dependently originated phenomena, the most well-known of which is the twelve links or nidānas (Pāli: dvādasanidānāni, Sanskrit: dvādaśanidānāni). The traditional interpretation of these lists is that they describe the process of a sentient being's rebirth in saṃsāra, and the resultant duḥkha (suffering, pain, unsatisfactoriness), and they provide an analysis of rebirth and suffering that avoids positing an atman (unchanging self or eternal soul). The reversal of the causal chain is explained as leading to the cessation of rebirth (and thus, the cessation of suffering).

The bhavachakra (Sanskrit: भवचक्र; Pāli: bhavacakka; Tibetan: སྲིད་པའི་འཁོར་ལོ, Wylie: srid pa'i 'khor lo) or wheel of life is a visual teaching aid and meditation tool symbolically representing saṃsāra (or cyclic existence). It is found on the walls of Tibetan Buddhist temples and monasteries in the Indo-Tibetan region, to help both Buddhists and non Buddhists understand the core Buddhist teachings. The image consists of four concentric circles, held by Yama, the lord of Death, with an image of the Buddha pointing to the moon metaphorically representing the possibility for liberation from the suffering of reincarnation.