Just like saṁskāra means educational process, to elevate one. Just like we send to school, college, for elevating a child to the higher standard of life, knowledge, similarly, these saṁskāras also like that. One must undergo the saṁskāras, the reformatory method, and act in life. If I have taken the saṁskāra of brāhmaṇa, if I have accepted the sacred thread, then I must act as a brāhmaṇa. It is very practical. Just like if you have passed your examination as an engineer, then you must act as an engineer. Not that simply you have got the qualification of engineer, and now you are engaged in the business of a shopkeeper. No. You must act as engineer. That is qualification.
Similarly, cātur-varṇyaṁ mayā sṛṣṭaṁ guṇa-karma-vibhāgaśaḥ (BG 4.13). Kṛṣṇa says that "This division, the social division—brāhmaṇa, kṣatriya, vaiśya, śūdra—is made by Me according to quality and work." Not that simply work or simply quality. You must have the quality and work, both. Means you must be bona fide candidate to work for something. If you want to work as a brāhmaṇa, then you must have all, you must possess all the bona fide qualities of a brāhmaṇa. If you want to act as a kṣatriya, then you must have all the kṣatriya qualities and act. The kṣatriya means they are especially the... Yuddhe cāpy apalāyanam. A kṣatriya is never afraid of fighting; neither, if somebody challenges, "I would fight with you, I want to fight with you," the kṣatriya will never deny. If somebody comes forward to a kṣatriya, that "I want to play chess or gamble..." Gambling was allowed to the kṣatriyas. It is by gambling all the Pāṇḍavas, they lost everything.