सुखमात्यन्तिकं यत्तद्बुद्धिग्राह्यमतीन्द्रियम्। वेत्ति यत्र न चैवायं स्थितश्चलति तत्त्वतः
sukham ātyantikaṁ yat tad buddhi-grāhyam atīndriyam vetti yatra na chaivāyaṁ sthitaśh chalati tattvataḥ
When he enjoys the bliss that surpasses the senses and can only be grasped by the pure intellect, when he comes to rest within his highest self, he will never again stray from reality.
Translated by Shri Purohit Swami
When he (the Yogi) feels that infinite bliss which can be grasped by the pure intellect and which transcends the senses, and is established therein, never moving away from the reality.
Translated by Swami Sivananda
Word meanings (from the gita/gita dataset)
sukham—happiness; ātyantikam—limitless; yat—which; tat—that; buddhi—by intellect; grāhyam—grasp; atīndriyam—transcending the senses; vetti—knows; yatra—wherein; na—never; cha—and; eva—certainly; ayam—he; sthitaḥ—situated; chalati—deviates; tattvataḥ—from the Eternal Truth