This man, this śvapacaṁ, or the man born in the family of caṇḍāla, he is able to deliver his whole dynasty. Whole dynasty, sa kulaṁ. This very word is used here, prāṇaṁ punāti. He personally becomes purified. There is no doubt about it. Prāṇaṁ. His life is perfect, punāti. Punāti means purified, and sa kulaṁ, sa kulaṁ means along with his family members.
He is not only personally becoming purified, but his parents, his parents' father, his father, his brother, his . . . sa kulaṁ. Kulaṁ, kulaṁ means the whole family. Sa kulaṁ punāti. Aravinda-nābha pādāravinda-vimukhāt śvapacaṁ (SB 7.9.10). What kind of fifth-class man? He is not fifth-class man. He may be born in a fifth-class family, but he is not fifth class.
Just like Prahlāda Mahārāja. Prahlāda Mahārāja, directly his father is a great demon, but he is not demon. It does not mean that a person born of low family is also low. This is not the verdict of Vedas. They . . . vedic culture was lost, or put into difficulty, simply for this reason, when the Vedic followers in India, they made these classification of brahmin, kṣatriya, as hereditary.
There is hereditary preference, certainly. If a man is born in a brahmin family, that is also stated in the Bhagavad-gītā, that . . . but by the contamination of Kali-yuga, all higher-class families, they have been contaminated.