Patanjali Yoga Sutra Transcribed from Parisamvad at The Yoga Institute. Chapter 1, Sutra 14 Sa-Tu-Dirghakala-Nairantarya-Satkara-Asevitah-Drdhbhumih It becomes firmly rooted when it has been habituated for a long time, without interruption and with sincere belief. Sa : that (practice) Tu : however Dirghakala : for a long time Nairantarya : without interruption Satkara :...