Śuci means brāhmaṇa, and muci means cobbler. Muci means cobbler. There is a Bengali verse, śuci haya muci haya yadi kṛṣṇa tyaje. The first line is muci haya śuci haya yadi kṛṣṇa bhaje: "One who takes to Kṛṣṇa consciousness, even he is born in the family of cobbler, muci..." Everyone knows, Indians. So muci haya śuci haya, although he is born in the family of a muci, cobbler, he becomes śuci, a brāhmaṇa, by, yadi kṛṣṇa bhaje, if he is a devotee of Kṛṣṇa, if he is in Kṛṣṇa consciousness. And muci haya śuci haya yadi kṛṣṇa bhaje or śuci haya muci haya yadi kṛṣṇa tyaje: "If one is born of a brāhmaṇa family, but gives up Kṛṣṇa bhajana, devotional life, he becomes a muci." Karmaṇā. Because he's changed his karma.