A term used in yogic meditation. Samadhi is also the Hindi word for a structure commemorating the dead.
Samādhi (Hindi pronunciation: [səˈmaːd̪ʱi]), also called samāpatti, in Hinduism, Buddhism, Jainism, Sikhism and yogic schools is the last stage or ultimate stage of meditation, when the person is out of physical consciousness. In samādhi the mind and soul are in equal balance. It is meditative absorption, attained by the practice of dhyāna. In samādhi the mind becomes still, one-pointed or concentrated while individual awareness remains present. When someone dies in India, it is not uncommon to say, that person has gone to 'Samādhi'. The tombstone area is also referred to as place of 'samādhi'.
In Buddhism, it is the last of the eight elements of the Noble Eightfold Path. In the Ashtanga Yoga tradition, it is the eighth and final limb identified in the Yoga Sūtras of Patañjali.
Example via www.ramdass.org: "Samadhi" Transcription