Caturtha
Liens intéressants
https://solancha.com/chaturtha-pranayama-discover-a-new-dimension-of-awareness/
https://yoga-vedanta-tantra.org/208-chaturtha-pranayama-the-perfect-pranayama/
https://yoga-vedanta-tantra.org/author/nalini/
https://sanskritdictionary.com/svacchanda%E1%B8%A5/3658/5
https://en.wikipedia.org/wiki/Amarakosha