Wild horses and Incompetent Charioteer
यस्त्वविज्ञानवान्भवत्ययुक्तेन मनसा सदा ।
तस्येन्द्रियाण्यवश्यानि दुष्टाश्वा इव सारथेः ॥ ५॥
yastvavijñānavānbhavatyayuktena manasā sadā .
tasyendriyāṇyavaśyāni duṣṭāśvā iva sāratheḥ .. 5..
If the buddhi, being related to a mind that is always distracted, loses its discriminations, then the senses become uncontrolled, like the vicious horses of a charioteer.
Commentary:
Yas tv avijñānavān bhavaty: The horses of the senses become non-cooperative if a person is unintelligent. Ayuktena manasā sadā: by not having a controlled mind; tasyendriyāṇy avaśyāni: for such a person the indriyas, or the senses, become restive and uncontrolled as uncontrolled horses. Duṣṭāśvā iva sāratheḥ: Sometimes we see horse carriages moving from Rishikesh to Lakshmanjhula. We can observe that the driver drives the cart up to the water tank, and then the horse stops; and if he pushes the horse, it will go backward. The carriage goes backwards into a ditch, and all the occupants have to get down. That is duṣṭāśvā, which means ‘not cooperative’, ‘a non-cooperative thing’.
Swami Vivekananda Says —
He whose mind is not under control, and who has no discrimination, his senses are not controllable like vicious horses in the hands of a driver.[Source]