Bhagavad-gītā As It Is · Text 6.26
Samādhi and a steadily controlled mind
यतो यतो निश्चलति मनश्चञ्चलमस्थिरम् ।
ततस्ततो नियम्यैतदात्मन्येव वशं नयेत् ॥ २६ ॥
yato yato niścalati
manaś cañcalam asthiram
tatas tato niyamyaitad
ātmany eva vaśaṁ nayet
From wherever the mind wanders due to its flickering and unsteady nature, one must certainly withdraw it and bring it back under the control of the Self.
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