We are transmigrating from different bodies. Jalajā nava-lakṣāṇi sthāvarā lakṣa viṁśati, kṛmayo rudra-saṅkhyakāḥ. In Padma Purāṇa, the gradual process of evolution is there. This evolution theory put . . . forwarded by Darwin, that is nonsense. Because the Darwin's theory is evolution of this body. In one sense, it is . . . but it is incomplete. Actually we are getting different types of body according to our association with the different modes of material nature. The material nature is being conducted by three modes: sattva-guṇa, rajo-guṇa, tamo-guṇa. So those who are in the modes of material nature, in the modes of goodness, their body is different. Just like brāhmin. Simply getting the body of brāhmin is not sufficient. One has to learn how to become brāhmin. Satyaṁ śamo damas titikṣā. But there is opportunity.
If one is born in a brāhmin family, he has got the opportunity to develop the brāhmin qualities. Similarly, if one is born in the family of a kṣatriya, he gets the opportunity of kṣatriya spirit. Similarly vaiśya. Cātur-varṇyaṁ mayā sṛṣṭaṁ guṇa-karma-vibhāgaśaḥ (BG 4.13). But the quality and actual action. Just like a boy is born of a medical practitioner, he has got greater chance of becoming, becoming a medical student, medical practitioners. But simply by getting birth as a son of medical practitioner is not sufficient. He has to take education. So cātur-varṇyaṁ mayā sṛṣṭaṁ guṇa-karma-vibhāgaśaḥ (BG 4.13). Kṛṣṇa does not say: "By birth." By acquiring the qualities and action. One must have the brahminical qualities and act as a brāhmin; then he'll be accepted as brāhmin.
So we are transmigrating according to our karma, different forms of life. The reason is, kāraṇaṁ guṇa-saṅgo 'sya sad-asad-janma-yoniṣu (BG 13.22). Kāraṇaṁ guṇa-saṅga, as you are associating with the guṇas, with the material qualities. So one has to increase his attachment for Kṛṣṇa by becoming nirguṇa. Everything is going on under the modes of material nature. Traiguṇya-viṣayā vedā nistraiguṇyo bhavārjuna. That is the instruction. One has to become above the . . . transcendental to these guṇas. And what is that process? The process is mad-āśraya. When you take shelter of Kṛṣṇa or you take shelter of Kṛṣṇa's pure devotee, then you become transcendental. Sa guṇān samatītyaitān brahma-bhūyāya kalpate. Who? Māṁ ca yo 'vyabhicāreṇa bhakti-yogena sevate (BG 14.26).
So mad-āśraya means . . . kṛṣṇa-yoga means bhakti-yoga. If you want to learn Kṛṣṇa, if you want to know Kṛṣṇa, then you have to take this process, mayy āsakta-manāḥ pārtha yogam. And if you practice this yoga, kṛṣṇa-yoga, or bhakti-yoga, then you become the topmost of all yogīs. That is also stated in the Sāṅkhya yoga chapter of Bhagavad-gītā:
- yoginām api sarveṣāṁ
- mad-gatenāntar-ātmanā
- śraddhāvān bhajate yo māṁ
- sa me yuktatamo mataḥ
- (BG 6.47)
So you have to keep always Kṛṣṇa within your heart. Kṛṣṇa is already within your heart. Īśvaraḥ sarva-bhūtānāṁ hṛd-deśe arjuna (BG 18.61). He's already there. Simply you have to qualify yourself to see that Kṛṣṇa is here. That is called kṛṣṇa-yoga, or bhakti-yoga.