Bhagavad Gita Chapter 5.21
bāhya-sparśeṣv asaktātmā
vindaty ātmani yat sukham
sa brahma-yoga-yuktātmā
sukham akṣayam aśnute
Translation
Such a liberated person is not attracted to material sense pleasure 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.