If you want to become secure, then you have to take to this yoga system, jñāna-vairāgya-yuktena (SB 3.25.18). It is said, jñāna-vairāgya-yuktena bhakti-yogena yoginaḥ. Yogīs. Yogīs means bhakti-yogī, not these gymnastic yogī. Therefore the yogīs . . . of course, to concentrate the mind under some mechanical process . . . therefore, those who are under too much under the concept of bodily concept of life, for them, this haṭha-yoga is recommended, because they know simply this body. "So all right, you make exercise in this way. You practice this āsana. You sit down like this. You see like this. You think like this." In this way there is a mechanical process to control the mind and senses. That is gymnastic part of the yoga system. But real process is to concentrate the mind upon the Supreme Personality of Godhead. Dhyānāvasthita-tad-gatena manasā paśyanti yaṁ yoginaḥ (SB 12.13.1). The yogī's business is, by controlling the mind, focus it toward Kṛṣṇa or Lord Viṣṇu. That is real yoga system.
So as soon as you focus your mind upon Kṛṣṇa or Viṣṇu, that is bhakti-yoga. Either you do it by meditation or do it twenty-four hours by practical application of your activities for Kṛṣṇa, that is called bhakti-yoga. And that is called samādhi. Even if you are going to some place for Kṛṣṇa's business, to see the police commissioner or going to the court for some degree or . . . because you are doing—you are concentrating your mind on Kṛṣṇa—that is called yoga, bhakti-yoga. Bhakti-yoga is so . . . so easy. Yat karoṣi yaj juhoṣi yad aśnāsi, yat tapasyasi kuruṣva mad-arpaṇam (BG 9.27). The result should be given to Kṛṣṇa. After working so hard day and night . . . people are working so hard day and night, but the result, they are enjoying. And a bhakti-yogī, the same thing—they are also working day and night, but the result is for Kṛṣṇa. This is the difference between bhakti-yogī and ordinary karmīs. Therefore ordinary karmīs, they cannot understand that the bhaktas are on the transcendental platform. They think, "They are like us. By sentiment, they are chanting and dancing." No. That is not. It is bhakti-yoga. And that is based on jñāna and vairāgya.
One cannot be bhakti-yogī without jñāna and vairāgya. It is not a sentimental thing; it is based on pure knowledge. What is that pure knowledge? Pure knowledge means "I do not belong to this material world. I am spirit soul. Ahaṁ brahmāsmi. Therefore my business is to serve the Supreme Brahman, or Para-brahman." Paraṁ brahma paraṁ dhāma pavitraṁ paramaṁ bhavān (BG 10.12). Arjuna agreed to serve Kṛṣṇa. Why? Because he understood Kṛṣṇa, paraṁ brahma paraṁ dhāma pavitraṁ paramaṁ bhavān, śāśvataṁ puruṣam: puruṣam, the Supreme Personality of Godhead, not impersonal.