Bhagwad Gita
Chapter 2, Verse 65
प्रसादे सर्वदुःखानां हानिरस्योपजायते।
प्रसन्नचेतसो ह्याशु बुद्धिः पर्यवतिष्ठते।।2.65।।
For one who is so situated in the Divine consciousness, the threefold miseries of material existence exist no longer; in such a happy state, one's intelligence soon becomes steady.