(“total self-collectedness”), in Hindu and Buddhist religion and philosophy, the highest state of mental concentration that a person can achieve while still bound to the body and which unites him with the highest reality. Samadhi is a state of profound and utterly absorptive contemplation of the Absolute that is undisturbed by desire, anger, or any other ego-generated thought or emotion. It is a state of joyful calm, or even of rapture and beatitude, in which one maintains one's full mental alertness and acuity. Samadhi is regarded in Hinduism and Buddhism as the climax of all spiritual and intellectual activity. The power to attain samadhi is a precondition of attaining release from the cycle of rebirths (saṃsāra). Hence the death of a person having this power is also considered a samadhi. By a further extension, the site where a person believed to be so empowered was cremated is in modern times also referred to as a samadhi; thus the site of Mohandas Gandhi's cremation in Delhi is officially named Gandhi's samadhi.