That is, that Bhaktivinoda Ṭhākura sings,
- mānasa deho geho jo kichu mor
- arpiluṅ tuwā pade nanda-kiśor
This is surrender. Mānasa deha geha. We have got our, this mind. Mind is the center of creative force. Therefore we have to surrender, first of all, our mind to Kṛṣṇa, just like Ambarīṣa Mahārāja did. Sa vai manaḥ kṛṣṇa-pādāravindayor vacāṁsi vaikuṇṭha-guṇānuvarṇane (SB 9.4.18). He set example that he, first of all, he surrendered his mind unto the lotus feet of Kṛṣṇa. Sa vai manaḥ kṛṣṇa-padāravindayor, and vacāṁsi vaikuṇṭha-guṇānuvarṇane, and he engaged his talkings simply on the matter of describing Vaikuṇṭha. Kṛṣṇa's another name in Vaikuṇṭha. Vaikuṇṭha means vigata-kuṇṭha. Kuṇṭha means anxiety. If you surrender to Kṛṣṇa, from that moment you become free from all anxieties; therefore Kṛṣṇa's name is Vaikuṇṭha. Just like, take for example, these Americans and European boys and girls, they were raised very, in a highly comforts of life, not like Indians. Their standard of living is better than Indians'. Everyone knows. When Europeans were in Calcutta, you have..., we have seen how their standard of living. If one has not gone to the Western countries, they could not remember. But I have traveled. Their standard of living is higher than Indian standard of living, so-called material comforts. So now they have sacrificed everything, you can see. How it has been possible? Because their mind has been engaged in Kṛṣṇa consciousness, sa vai manaḥ kṛṣṇa-padāravinda vacāṁsi vaikuṇṭha-guṇānu. If you engage your talking simply on the matter of describing Kṛṣṇa, if you engage your mind always on the lotus feet of Kṛṣṇa, if you engage your legs for going to the temple of Kṛṣṇa, if you engage your hand for cleansing the temple of Kṛṣṇa, if you engage your nose for smelling the flower offered to Kṛṣṇa, if you engage your tongue for tasting prasādam which is offered to Kṛṣṇa, in this way, if your all senses are engaged in Kṛṣṇa consciousness, then you become the topmost yogi. Because yoga perfection means yoga indriya-saṁyamya. The practice of yoga means to control the mind and the senses. This is the purpose of yoga, not for playing any juggling. But sometimes the yogis become so powerful, they get some perfection, aṇimā, laghimā-siddhi, they get. But that is not the prime object of yoga. Yoga, yoga practice means that one becomes controller of the senses and the mind, and then they can perfectly meditate on the Supreme Personality of Godhead. Dhyānāvasthita-tad-gatena manasā paśyanti yaṁ yogino. This is yogis' business: dhyānāvasthita, by meditation, tad-gata-manasā, spiritualized mind, or completely absorbed in the thought of Kṛṣṇa. dhyānāvasthita-tad-gatena manasā paśyanti yam..., they can see, they can see God, Kṛṣṇa, Viṣṇu, within the heart. Īśvaraḥ sarva-bhūtānāṁ hṛd-deśe 'rjuna tiṣṭhati (BG 18.61). Īśvara, the Supreme Personality of Godhead, paramātmā, He is situated in everyone's heart. You haven't got to search out. He is there within your heart. Simply you have to know the method how to see. That is wanted. Dhyānāvasthita-tad-gatena manasa paśyanti.
So therefore this science, the devotional science, devotional service, or bhakti-yoga, is rāja-vidyā. Automatically. Automatically your senses, mind become controlled because it is engaged in Kṛṣṇa; therefore it is purified. And as soon as it's purified, you'll not like to engage your senses in any other activities. That is the taste of bhakti. Bhakti..., one has become bhakta, at the same time he is very much attracted this sense gratification, that is not bhakta. Bhakti means bhakti-pareśānubhavo: realization of the Transcendence. And what is the test? Viraktir anyatra syāt, vairāgya. Many places it is stated, vāsudeve bhagavati bhakti-yogaḥ prayojitaḥ janayaty āśu vairāgyam (SB 1.2.7). Vairāgyam means no more taste for sense gratification. That is called vairāgyam. Vīra, vigatah rāga, no attachment. Our material attachment means material sense gratification. That is attachment. And bhakti means...