Krishna delivers a sobering reality check about the raw power of human biology. He warns Arjuna (Kaunteya) that the senses (indriyāṇi) are turbulent, impetuous, and immensely powerful (pramāthīni). They are so strong that they can forcibly and violently (prasabhaṃ) kidnap the mind (haranti manaḥ). This doesn't just happen to weak people; Krishna explicitly states it happens even to a highly intelligent, discerning person (puruṣasya vipaścitaḥ) who is actively endeavoring to control them (yatato hy api).