On the occasion of the appearance of Nara-Nārāyaṇa, the entire world was full of joy. Everyone’s mind became tranquil, and thus in all directions the air, the rivers and the mountains became pleasant.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
ययोर्जन्मन्यदो विश्वमभ्यनन्दत्सुनिर्वृतम् । मनांसि ककुभो वाताः प्रसेदुः सरितोऽद्रयः
yayorjanmanyado viśvamabhyanandatsunirvṛtam | manāṃsi kakubho vātāḥ praseduḥ sarito'drayaḥ
SB 4.1.53