yathā dīpo nivāta-stho
neṅgate sopamā smṛtā
yuñjato yogam ātmanaḥ
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.
. . .
यथा दीपो निवातस्थो नेङ्गते सोपमा स्मृता ।
योगिनो यतचित्तस्य युञ्जतो योगमात्मन: ॥ १९ ॥