Lord Brahma, the creator of the cosmic manifestation, is known as Svayambhu, or one who is born without father and mother. The general process is that a living creature is born out of the sex combination of the male father and the female mother. But Brahma, the firstborn living being, is born out of the abdominal lotus flower of the Maha-Visnu plenary expansion of Lord Krsna. The abdominal lotus flower is part of the Lord's bodily limbs, and Brahma is born out of the lotus flower. Therefore Lord Brahma is also a part of the Lord's body. Brahma, after his appearance in the gigantic hollow of the universe, saw darkness and nothing else. He felt perplexity, and from his heart he was inspired by the Lord to undergo austerity, thereby acquiring the ingredients for sacrificial performances. But there was nothing besides the two of them, namely the Personality of Maha-Visnu and Brahma himself, born of the bodily part of the Lord. For sacrificial performances many ingredients were in need, especially animals. The animal sacrifice is never meant for killing the animal, but for achieving the successful result of the sacrifice. The animal offered in the sacrificial fire is, so to speak, destroyed, but the next moment it is given a new life by dint of the Vedic hymns chanted by the expert priest. When such an expert priest is not available, the animal sacrifice in the fire of the sacrificial altar is forbidden. Thus Brahma created even the sacrificial ingredients out of the bodily limbs of the Garbhodakasayi Visnu, which means that the cosmic order was created by Brahma himself. Also, nothing is created out of nothing, but everything is created from the person of the Lord. The Lord says in the Bhagavad-gita (10.8), aham sarvasya prabhavo mattah sarvam pravartate. "Everything is made from My bodily limbs, and I am therefore the original source of all creations."