Canonical Ref: YS 1.5
Sanskrit (Devanāgarī)
वृत्तयः पञ्चतय्यः क्लिष्टा अक्लिष्टाः
English Scholarly Translation
The mental modifications are five-fold and are either painful or not painful
व्याख्या / Traditional Commentary & Notes
Classical Exegesis
Transformations (vṛttayaḥ) ,of five kinds (pañcatayyaḥ) , are either afflicating (kliṣṭāḥ) or not-afflicting (akliṣṭāḥ),
Canonical CTS URN Reference
Pātañjala Yoga Sūtras, YS 1.5. Poorvam Open Research Engine (PORE) Corpus.