“Breath is indispensable for life
and its absence is death.
Hence the necessity to make it longer
and accumulate the Prāṇa Śakti.
Just as a rich man accumulates money slowly to get wealthy,
so also one should practice every day,
through the proper use of the breath in Āsana,
to maintain good health.”
– T Krishnamacharya‘s response to a question on breathing.