योऽन्तःसुखोऽन्तरारामस्तथान्तर्ज्योतिरेव यः। स योगी ब्रह्मनिर्वाणं ब्रह्मभूतोऽधिगच्छति
yo 'ntaḥ-sukho 'ntar-ārāmas tathāntar-jyotir eva yaḥ sa yogī brahma-nirvāṇaṁ brahma-bhūto 'dhigachchhati
He who is happy within himself and has found its peace, and in whom the inner light shines, that sage attains eternal bliss and becomes one with the spirit.
Translated by Shri Purohit Swami
He who is happy within, who rejoices within, and who is illuminated within, that Yogi attains absolute freedom, or Moksha, becoming Brahman himself.
Translated by Swami Sivananda
Word meanings (from the gita/gita dataset)
yaḥ—who; antaḥ-sukhaḥ—happy within the self; antaḥ-ārāmaḥ—enjoying within the self; tathā; antaḥ-jyotiḥ—illumined by the inner light; eva—certainly; yaḥ—who; saḥ; yogī—yogi; brahma-nirvāṇam—liberation from material existence; brahmabhūtaḥ— united with the Lord; adhigachchhati—attains