इन्द्रियाणां हि चरतां यन्मनोऽनुविधीयते।
तदस्य हरति प्रज्ञां वायुर्नावमिवाम्भसि।।2.67।।
।।2.67।।अपनेअपने विषयोंमें विचरती हुई इन्द्रियोंमेंसे एक ही इन्द्रिय जिस मनको अपना अनुगामी बना लेती है वह अकेला मन जलमें नौकाको वायुकी तरह बुद्धिको हर लेता है।
When the senses are rambling about in pursuit of their delights and one allows their mind to follow in hot pursuit after them, then the mind will be deprived of its inherent intelligence and will completely forget all the things that lead to ones highest good. Instead of inducing a strong will to pursue spiritual development one will develop a strong will for sensual enjoyment. Thus Lord Krishna gives this fitting analogy of a ship in the ocean being tossed about violently hither and thither by tempestuous winds. The conclusion of this rational is explained in the next verse.
