Verse 15

भाग एष त्वविद्याया एवं विद्यात्वमागतः ।बीजं फलत्वमायाति फलमायाति बीजताम्

In plain words

But this portion of avidyā has thus arrived at the very state of vidyā -- as the seed comes round to being fruit, and the fruit comes round to being seed.