who is kalki
Kalki (Devanagari: à¤à¤²à¥à¤à¤¿; also rendered by some as Kalkin and Kalaki), in some Hindu traditions, is the tenth and final great avatar (appearance or incarnation) of Vishnu prophesied to end the present age of darkness and destruction known as Kali Yuga. The name Kalki is often used as a metaphor for eternity or time.