Anapanasati a form of Buddhist meditation focusing on breath awareness was introduced by Goutam Budda.
Anapanasati meditation by Shreans Daga Garu.
Ana: Incoming breath.
Pana: outgoing breath.
Sati: (To be with) Incoming & outgoing breath merge or meeting point.
Anapanasati is nothing but watching your natural, calm, serene, warm, tranquil, peaceful, soothing incoming and outgoing breath.
Breath is your master.