Brahma that originates from primeval Darkness develops into the idea of the universe, and assumes the form of Purusha. Such Purusha is called Aniruddha. Shorn of sex, it is called otherwise by the name of Pradhana
तद्विश्वभावसंज्ञान्तं पौरुषी तनुमाश्रितम्॥ सोऽनिरुद्ध इति प्रोक्तस्तत् प्रधानं प्रचक्षते।