Bhagwad Gita
Chapter 5, Verse 21
बाह्यस्पर्शेष्वसक्तात्मा विन्दत्यात्मनि यत्सुखम्।
स ब्रह्मयोगयुक्तात्मा सुखमक्षयमश्नुते।।5.21।।
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.