sri-bhagavan uvaca -- the Supreme Lord said; asan -- there were; mariceh -- of Marici; shat -- six; putrah -- sons; urnayam -- born of Urna (his wife); prathame -- in the first; antare -- rule of Manu; devah -- demigods; kam -- at Lord Brahma; jahasuh -- they laughed; vikshya -- seeing; sutam -- with his daughter (Sarasvati); yabhitum -- to copulate; udyatam -- prepared.

The Supreme Lord said: During the age of the first Manu, the sage Marici had six sons by his wife Urna. They were all exalted demigods, but once they laughed at Lord Brahma when they saw him preparing to have sex with his own daughter.