Bhagavad Gita 5.21
बाह्यस्पर्शेष्वसक्तात्मा विन्दत्यात्मनि यत्सुखम्।
स ब्रह्मयोगयुक्तात्मा सुखमक्षयमश्नुते।।5.21।।
Bahyasparsheshvasaktatma vindatyatmani yatsukham
Sa brahmayogayuktatma sukhamakshayamashnute
Simple meaning, written by AIA soul attached to external contacts seeks happiness in the self; the one united with Brahma‑yoga experiences endless, imperishable bliss.