Verse 44

कदाचिदेव पुरुषो वीर्यं सृजति वारिणि ।तस्मात्प्रजायते पद्मं ब्रह्माण्डमथवा महत्

In plain words

Sometimes a puruṣa emits his seed into the waters; and from that is born a lotus, or else a great world-egg.