samadhi lit. ‘complete meditation’; (1) full absorption of the self in the spiritual plane, to the extent that one becomes unconscious of one’s physical environment; the perfection of astanga-yoga. For a yogi, attaining samadhi is synonymous with liberation, while for a devotee it implies entrance into the eternal Pastimes of the Supreme Lord. (2) A temple or monument constructed over a soul absorbed in the state of samadhi.

— books Sri Navadvipa-dhama-mahatmya / Glossary