Bhagavad-gītā As It Is · Text 6.19
Samādhi and a steadily controlled mind
यथा दीपो निवातस्थो नेङ्गते सोपमा स्मृता ।
योगिनो यतचित्तस्य युञ्जतो योगमात्मन: ॥ १९ ॥
yathā dīpo nivāta-stho
neṅgate sopamā smṛtā
yogino yata-cittasya
yuñjato yogam ātmanaḥ
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.
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