数息観 (Skt anapana-smriti or anapana-samadhi; Jpn susoku-kan )
Also, counting-of-breath meditation. One of the five meditations.
A method of quieting the mind by counting one's breaths. This meditative practice prepares
one to enter samadhi, a high level of serene meditative contemplation.
The Sanskrit wordanapana means breath or breathing. Smriti means mindfulness, awareness,
memory, or remembrance, and samadhi meansconcentration, contemplation, or meditation.