Jñāneśvarī (commentary on the Bhagavadgītā) 2.341

2.341

jaisā nirvātīcā dīpu |
sarvathā neṇe kaṃpu |
taisā sthirabuddhi svasvarūpu |
yogayuktu ||

Just as a lamp in a windless place
knows no flickering at all,
so one established in yoga, whose intellect is steady,
remains in his own essential nature.