One verse

Bhagavad Gita 6.19

6.19

यथा दीपो निवातस्थो नेङ्गते सोपमा स्मृता | योगिनो यतचित्तस्य युञ्जतो योगमात्मनः ||६-१९||

yathā dīpo nivātastho neṅgate sopamā smṛtā . yogino yatacittasya yuñjato yogamātmanaḥ ||6-19||

yathā
as
dīpaḥ
a lamp
nivāta-sthaḥ
in a place without wind
na
does not
iṅgate
waver
sā
this
upamā
comparison
smṛtā
is considered
yoginaḥ
of the yogī
yata-cittasya
whose mind is controlled
yuñjataḥ
constantly engaged
yogam
in meditation
ātmanaḥ
on transcendence

As a lamp in a windless place does not waver, so the transcendentalist, whose mind is controlled, remains always steady in his meditation on the transcendent Self.