This family attachment, and just the opposite thing is vairāgya-vidyā, how to become detached. This is the whole process of Vedic civilization. Everyone has got this attachment for the body and expansion of the body. So vairāgya-vidyā means to be detached. That is called brahma-jñāna. Brahma-bhūtaḥ prasannātmā na śocati na kāṅkṣati (BG 18.54). That is brahma-jñāna. As soon as you understand ahaṁ brahmāsmi, "I am not this body; I am spirit soul," this is called brahma-jñāna. So long you do not get this knowledge, you are in ignorance. That ignorance, there are degrees. In the sattva-guṇa, or in the modes of goodness, you can simply theoretically understand that, "I am not this body." That is sattva-guṇa. Brahminical qualities. Śamo damas titikṣā ārjavaṁ jñāna, jñānaṁ vijñānam āstikyaṁ brahma-karma svabhāva-jam (BG 18.42). When you . . . brahma-jānātīti brāhmaṇaḥ. Brāhmaṇa means who has got the knowledge of brahma. Veda-paṭhād bhaved vipro brahma-jānātīti brāhmaṇaḥ, janmanā jāyate śūdraḥ saṁskārād bhaved dvijaḥ.
So everyone is born śūdra, but by cultivation of knowledge and culture, one can become . . . saṁskārāt. Therefore, according to Vedic system, there are ten kinds of saṁskāra, reformatory method. This upanayana-saṁskāra, this is also one of the saṁskāra, sacred thread. Upanayana. Upa means near, and nayana means bringing. When the spiritual master brings nearer to spiritual consciousness, a person is given the upanayana, or the sacred thread. The sacred thread is the indication that, "This man is now under the control of the spiritual master for advancing in Kṛṣṇa consciousness." This thread ceremony. This is called upanayana. Similarly, there is reformatory method, marriage . . . there are ten kinds of reformatory . . . the first beginning is garbhādhāna. So these things are impossible to introduce now in this Kali-yuga.