BG 5.21
बाह्यस्पर्शेष्वसक्तात्मा विन्दत्यात्मनि यत्सुखम् ।
स ब्रह्मयोगयुक्तात्मा सुखमक्षयमश्नुते ॥ २१ ॥
āhya-sparśeṣv asaktātmā
vindaty ātmani yat sukham
sa brahma-yoga-yuktātmā
sukham akṣayam aśnute
bāhya-sparśeṣu — in external sense pleasure; asakta-ātmā — one who is not so attached; vindati — enjoys; ātmani — in the self; yat — that which; sukham — happiness; saḥ — that; brahma-yoga — concentrated in Brahman; yukta-ātmā — self-connected; sukham — happiness; akṣayam — unlimited; aśnute — enjoys.
Such a liberated person is not attracted to material sense pleasure or external objects but is always in trance, enjoying the pleasure within. In this way the self-realized person enjoys unlimited happiness, for he concentrates on the Supreme.
Śrī Yāmunācārya, a great devotee in Kṛṣṇa consciousness, said: