Valmiki,
The Yoga-Vasishtha Maharamayana of Valmiki…
“ When he entertains a long thought, he draws a long breath, when he thinks quickly, his breath vibrates with rapid alternations; when the tempest of anger shakes his mind, his breath is tumultuous; when his soul is deep and tranquil, so is his respiration; when success inflates him, his lungs are as timid as his concepts. Let him make trial of the accuracy, let him endeavour to think in long stretches, at the same time that he breathes in fits, and he will find that it is impossible; that in this case the chopping will needs mince his thoughts. ”
