Saṃsāra (Buddhism)
A thangka painting from Tibet shows the bhavacakra, a wheel depicting the ancient five cyclic realms of sañsāra in Buddhist cosmology. This image captures the core definition found in early texts: sañsāra is the beginningless cycle of repeated birth, mundane existence and dying again. Passages from the Samyutta Nikaya describe this process as fueled by ignorance and craving. The cycle lacks any particular direction or purpose, moving beings across six different paths without a final goal until liberation occurs. Samsara is characterized by suffering, known in Sanskrit as duhkha, which relates directly to the Four Noble Truths. Every rebirth is temporary and impermanent, meaning one is born and dies only to be reborn elsewhere based on past actions. Outside of a Buddhist context, similar notions of cyclic existence date back to 800 BCE.
Buddhist cosmology typically identifies six distinct realms of rebirth and existence including gods, demi-gods, humans, animals, hungry ghosts and hells. Earlier Buddhist texts refer to five realms rather than six realms when describing god and demi-god realms as a single category. The three higher realms are considered good and fortunate while the three lower realms are evil and unfortunate. A rebirth in the heavenly realm stems from accumulating wholesome karma yet leads to attachment and no nirvana. The vast majority of Buddhist lay people have historically pursued rituals motivated with rebirth into deva realm. In contrast, beings in hell enter for evil karma such as theft, lying and adultery. These hellish regions include eight hot hells and eight cold hells where beings suffer intense pain before exhausting their unwholesome karma. Tibetan Buddhism proposes that a buddha exists in each of the six realms known collectively as the Six Sages.
Sañsāra in Buddhism asserts there is no permanently unchanging entity undergoing endless cycles of rebirth which distinguishes it from Hindu and Jain views. This doctrine of non-self holds that the notion of an unchanging permanent self is a fiction with no reality. Early Buddhist texts suggest the Buddha faced difficulty explaining what is reborn after inventing the concept of no self. Later scholars like fifth-century Pali scholar-monk Buddhaghosa suggested lack of self does not mean lack of continuity. Buddhaghosa attempted to explain rebirth mechanism using rebirth-linking consciousness similar to how a flame transfers from one candle to another. Buddhist traditions diverge on whether an intermediate state exists between lives. Conservative Theravada Buddhists assert rebirth is immediate while Mahayana schools generally agree there is an intermediate state up to forty-nine days before being reborn. The Connected Discourses of the Buddha translate these complex doctrinal positions into accessible language for modern readers.
Samsara is perpetuated by karma resulting from intentional physical or mental acts causing future consequences. Whether a deed is wholesome or unwholesome determined by underlying intention known as cetana. Inconsistencies in oldest texts show Buddhist teachings on craving and ignorance evolved during lifetime of Buddha or thereafter. Originally craving was considered root cause of samsara stilled by practice of dhyana leading to calm mind. Later tradition considers ignorance to be root cause of samsara described as misconception about reality leading to grasping and clinging. Paul Williams states it is not-knowingness of things as they truly are or of oneself as one really is. This can be overcome by insight into true nature of reality. Ideas on what exactly constituted liberating insight evolved over time with prajna serving initial term later replaced by four truths. These ideas were superseded by pratityasamutpada and still later by doctrine of non-existence of substantial self or person.
Sañsāra ends when one attains liberation identified with nirvana in early Buddhism. In later Buddhism liberation tied to insight especially recognition and acceptance of non-self. Some Buddhist texts suggest rebirth occurs through transfer of consciousness from one life to another. When this consciousness ceases then liberation is attained. There is connection between consciousness karmic activities and cycle of rebirth where destruction of consciousness leads to cessation of karmic activities necessary for continued perpetuation of cyclic existence. While Buddhism considers liberation ultimate spiritual goal traditional practice involves seeking merit through good deeds donations to monks and various rituals. A value of Buddhism is idea of impermanence meaning all living things causes conditions situations disappear once originated. Impermanence occurs moment to moment explaining why no recognition of self exists since everything state decay prevents permanent happiness. Obtaining awareness of Anatta results in freedom from push-pull of own appetions passions ambitions fixations external world domination general conquest greed hatred delusion.
According to Chögyam Trungpa realms of samsara can refer to both psychological states of mind and physical cosmological realms. Gethin argues rebirth in different realms determined by karma directly determined by psychological states. Buddhist cosmology may thus seen as map of different realms existence description all possible psychological experiences. Psychological states person current life lead nature next rebirth in Buddhist cosmology. Paul Williams acknowledges Gethin suggestion principle equivalence cosmology psychology but notes not asserting Buddhist cosmology really all about current or potential states mind psychology. David McMahan concludes attempts construe ancient Buddhist cosmology modern psychological terms modernistic reconstruction detraditionalization demythologization Buddhism sociological phenomenon seen all religions. Pre-modern form interpretation seen views sixth-century Chinese monk Zhiyi whose writings became foundation Tiantai school China concept named trichiliocosm single instant thought proposing vastness space contained shortest span single thought. Record Linji anthology teachings ninth-century Chinese monk Linji Yixuan presents view Three Realms originate with mind.
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Common questions
What is the definition of Sañsāra in Buddhism?
Sañsāra is the beginningless cycle of repeated birth, mundane existence and dying again. Passages from the Samyutta Nikaya describe this process as fueled by ignorance and craving. The cycle lacks any particular direction or purpose until liberation occurs.
How many realms exist within Buddhist cosmology according to Sañsāra?
Buddhist cosmology typically identifies six distinct realms of rebirth including gods, demi-gods, humans, animals, hungry ghosts and hells. Earlier Buddhist texts refer to five realms rather than six realms when describing god and demi-god realms as a single category. These hellish regions include eight hot hells and eight cold hells where beings suffer intense pain before exhausting their unwholesome karma.
When did similar notions of cyclic existence date back to outside of a Buddhist context?
Outside of a Buddhist context, similar notions of cyclic existence date back to 800 BCE. Early Buddhist texts suggest the Buddha faced difficulty explaining what is reborn after inventing the concept of no self. Later scholars like fifth-century Pali scholar-monk Buddhaghosa suggested lack of self does not mean lack of continuity.
Why does Sañsāra perpetuate itself through karma in Buddhism?
Sañsāra is perpetuated by karma resulting from intentional physical or mental acts causing future consequences. Whether a deed is wholesome or unwholesome determined by underlying intention known as cetana. Originally craving was considered root cause of samsara stilled by practice of dhyana leading to calm mind while later tradition considers ignorance to be root cause of samsara described as misconception about reality leading to grasping and clinging.
How does one end the cycle of Sañsāra according to early Buddhism?
Sañsāra ends when one attains liberation identified with nirvana in early Buddhism. When this consciousness ceases then liberation is attained. There is connection between consciousness karmic activities and cycle of rebirth where destruction of consciousness leads to cessation of karmic activities necessary for continued perpetuation of cyclic existence.