So for a Vaiṣṇava, as I was explaining, the tri-daśa-pūr ākāśa-puṣpāyate durdāntendriya-kāla-sarpa-paṭalī. So controlling the sense, that is durdānta. Durdānta means formidable. It is very, very difficult to control the senses. Therefore the yoga process, mystic yoga process—just to practice how to control the senses. But for a devotee... They... Just like the tongue, if it is engaged only in the business of chanting Hare Kṛṣṇa mantra and eating only Kṛṣṇa prasādam, the whole thing is done, perfect yogi. Perfect yogi. So for a bhakta, there is no trouble with the senses because a bhakta knows how to engage each and every sense in the service of the Lord. Hṛṣīkeṇa hṛṣīkeśa-sevanam (CC Madhya 19.170). That is bhakti. Hṛṣīka means the senses. When the senses are engaged only for the service of Kṛṣṇa, Hṛṣīkeśa, then there is no need of practicing yoga. Automatically they are locked up in the service of Kṛṣṇa. They have no other engagement. That is the highest. Therefore Kṛṣṇa says,
- yoginām api sarveṣāṁ
- mad-gatenāntarātmanā
- śraddhāvān bhajate yo māṁ
- sa me yuktatamo mataḥ
- (BG 6.47)
"A first-class yogi is he who is always thinking of Me." Therefore this chanting of Hare Kṛṣṇa mantra, if we simply chant and hear, the first-class yogi. So these are the process. So Kṛṣṇa wants to Arjuna that "Why you are indulging in this weakness of mind? You are under My protection. I am ordering you to fight. Why you are denying?" This is the purport.