Viśvāmitra failed, but this bhakti-yogī, he conquered. This is karmendriya. If you want to force your senses to stop work, it is very difficult. But if you engage your senses for transcendental loving service of the Supreme Lord, it will be automatically, automatically stopped. That is stated. Ātma-saṁyama juhvati jṣāna-dīpite (BG 4.27). That jṣāna, that jṣāna means knowledge. That is stated in the Bhagavad-gītā, bahūnāṁ janmanām ante vāsudevaḥ sarvam iti (BG 7.19). If that stage of knowledge is achieved, that "Kṛṣṇa, or Vāsudeva, is everything, and I am eternal servant of Kṛṣṇa," that is perfection of.
So when that perfection of jṣāna comes, then he engages his senses. Hṛṣīkeṇa hṛṣīkeśa-sevanaṁ bhaktir ucyate (CC Madhya 19.170). When your senses are purified and you engage them in the service of the Supreme Lord, Hṛṣīkeśa, the master of the senses, that is called bhakti. That is the highest perfection. So we have to engage our sense, sarvāṇīndriya-karmāṇi, by understanding, by coming to the, I mean to say, mature platform of knowledge. If you engage your senses in the Supreme, that is real controlling senses. Artificially if we want to control our senses, it is very difficult.