Whether asleep or awake, during the day or in the night, and during the night or in the day, they who practise Yoga after renouncing all the creations of the understanding the passion engendered by acts, and the power which Yoga begets, succeed in keeping their subtile form under complete control.
स्वपतां जाग्रतां चैव सर्वेषामात्मचिन्तितम्। प्रधानाद्वैधमुक्तानां जहतां कर्मजं रजः॥ यथाहनि तथा रात्रौ यथा रात्रौ तथाहनि। वशे तिष्ठति सत्त्वात्मा सततं योगयोगिनाम्॥