refers to the concept of reincarnation or rebirth in Indian philosophical traditions.
. One who is subject to Samsara is called a samsarin.
Cycle of rebirth
In most Indian philosophical traditions, including the orthodox Hindu and heterodox Buddhist and Jain systems, an ongoing cycle of birth, death, and rebirth is assumed as a fact of nature. These systems differ widely, however, in the terminology with which they describe the process and in the metaphysics they use in interpreting it. Most of these traditions, in their evolved forms, regard Saṃsāra negatively, as a fallen condition which is to be escaped. Some, such as Advaita Vedanta regard the world and Saṃsāric participation in it as fundamentally illusory.
Some later adaptations of these traditions identify Saṃsāra as a mere metaphor.
Saṃsāra in Hinduism
In some types of Hinduism, Saṃsāra is seen as ignorance of the True Self, Brahman, and thus the soul is led to believe in the reality of the temporal, phenomenal world.
In Hinduism, it is avidya, or ignorance, of one's true self, that leads to ego-consciousness of the body and the phenomenal world. This grounds one in desire and the perpetual chain of karma and reincarnation. The state of illusion is known as Maya.
Hinduism had many terms for the state of liberation like moksha, mukti, nirvana, and mahasamadhi.
+ The Hindu Yoga traditions hold various beliefs. Moksha may be achieved by love of Ishwar/God (see bhakti movement), by psycho-physical meditation (Raja Yoga), by discrimination of what is real and unreal through intense contemplation (Jnana Yoga) and through Karma Yoga, the path of selfless action that subverts the ego and enforces understanding of the unity of all. Advaita Vedanta, which heavily influenced Hindu Yoga, believes that Brahman, the ultimate Truth-Consciousness-Bliss, is the infinite, impersonal reality (as contrasted to the Buddhist concept of shunyata) and that through realization of it, all temporal states like deities, the cosmos and samsara itself are revealed to be nothing but manifestations of Brahman.
Samsara - tour of this universe and beyond