One verse

Srimad Bhagavatam 7.6.2

7.6.2

यथा हि पुरुषस्येह विष्णो: पादोपसर्पणम् । यदेष सर्वभूतानां प्रिय आत्मेश्वर: सुहृत् ॥ २ ॥

yatha hi purusasyeha visnoh padopasarpanam yad esa sarva-bhutanam priya atmesvarah suhrt

yatha
in order that
hi
indeed
purusasya
of a living entity
iha
here
visnoh
of Lord Visnu, the Supreme Personality of Godhead
pada-upasarpanam
approaching the lotus feet
yat
because
esah
this
sarva-bhutanam
of all living entities
priyah
the dear one
atma-isvarah
the master of the soul, the Supersoul
suhrt
the best well-wisher and friend.

The human form of life affords one a chance to return home, back to Godhead. Therefore every living entity, especially in the human form of life, must engage in devotional service to the lotus feet of Lord Visnu. This devotional service is natural because Lord Visnu, the Supreme Personality of Godhead, is the most beloved, the master of the soul, and the well-wisher of all other living beings.