प्रागासीद्भावरूपं तम इति तमसा गूढमस्मादतर्क्यंक्षीरान्तर्यद्वदम्भो जनिरिह जगतो नामरूपात्मकस्य ।कामाद्धातुः सिसृक्षोरनुगतजगतः कर्मभिः सम्प्रवृत्ता -द्रेतोरूपैर्मनोभिः प्रथममनुगतैः सन्ततैः कार्यमाणैः ॥ २५ ॥
In plain words
Before the world arose, darkness lay hidden in darkness, beyond the reach of thought, like water concealed within milk. Then the Creator willed to create. The world of name and form emerged, urged forward by Karma carried from the world before it, while minds followed in latent, seed-like form.
Close to the Sanskrit
Before creation, darkness existed as a positive condition, hidden by darkness and therefore beyond thought, as water lies hidden within milk. From the Creator's desire to create came the birth of this world of name and form, set in motion by the Karmas of the preceding world and accompanied at first by minds continuous with it in seed form.