BG 2.67
इन्द्रियाणां हि चरतां यन्मनोऽनुविधीयते। तदस्य हरति प्रज्ञां वायुर्नावमिवाम्भसि
indriyāṇāṁ hi charatāṁ yan mano ’nuvidhīyate tadasya harati prajñāṁ vāyur nāvam ivāmbhasi
As a ship at sea is tossed by the tempest, so the reason is carried away by the mind when preyed upon by straying senses.
Translated by Shri Purohit Swami
For the mind, which follows in the wake of the wandering senses, carries away his discrimination, as the wind carries away a boat on the waters.
Translated by Swami Sivananda
Word meanings (from the gita/gita dataset)
indriyāṇām—of the senses; hi—indeed; charatām—roaming; yat—which; manaḥ—the mind; anuvidhīyate—becomes constantly engaged; tat—that; asya—of that; harati—carries away; prajñām—intellect; vāyuḥ—wind; nāvam—boat; iva—as; ambhasi—on the water