yato yato niścarati manaś cañcalam asthiram
yato yato niścarati manaś cañcalam asthiram |
tatas tato niyamyaitad ātmany eva vaśaṁ nayet ||
(Śrīmad Bhagavad-gītā: 6.26)
“Restraining [i.e., withdrawing] the restless, unsteady mind from wherever it wanders, one should bring it under control within the self.”