BG 6.19

यथा दीपो निवातस्थो नेङ्गते सोपमा स्मृता ।
योगिनो यतचित्तस्य युञ्जतो योगमात्मनः ॥१९॥

yathā dīpo nivāta-stho
neṅgate sopamā smṛtā
yogino yata-cittasya
yuñjato yogam ātmanaḥ

2 times this text was mentioned in purports to other texts: LBG(2)

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.

Text

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.

Purport

A truly Kṛṣṇa conscious person, always absorbed in transcendence, in constant undisturbed meditation on his worshipable Lord, is as steady as a lamp in a windless place.

Bhagavad Gita As It Is.

Chapter 6: Dhyana-yoga. Text 19

2 times this text was mentioned in purports to other texts: LBG(2)

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.