सुखमात्यन्तिकं यत्तद् बुद्धिग्राह्यमतीन्द्रियम् | वेत्ति यत्र न चैवायं स्थितश्चलति तत्त्वतः ||६-२१||
sukhamātyantikaṃ yattad buddhigrāhyamatīndriyam . vetti yatra na caivāyaṃ sthitaścalati tattvataḥ ||6-21||
Chapter 6 · Verse 21
Dhyana Yoga
ध्यानयोग
In plain words
The Infinite Bliss of the Self (which is beyond the reach of the senses) can be grasped (realised) by the pure intellect independently of the senses. During deep meditation the senses cease to function as they are involved into their cause the mind. The intellect is rendered pure by the practice of Yama (selfrestriant) and Niyama (observances and disciplinary practices) and constant meditation.
Translation
6.21 Where one knows that infinite happiness which can be grasped by the intellect but is beyond the grasp of the senses, wherein established one swerves not from that condition;
Meaning
The Infinite Bliss of the Self (which is beyond the reach of the senses) can be grasped (realised) by the pure intellect independently of the senses. During deep meditation the senses cease to function as they are involved into their cause the mind. The intellect is rendered pure by the practice of Yama (selfrestriant) and Niyama (observances and disciplinary practices) and constant meditation.
Word by word
सुखम् bliss आत्यन्तिकम् infinite यत् which तत् that बुद्धिग्राह्यम् that which can be grasped by reason अतीन्द्रियम् transcending the senses वेत्ति knows यत्र where न not च and एव even अयम् this स्थितः established चलति moves तत्त्वतः from the Reality.