Verse 18

स्थावरादय एते हि समस्ता जडधर्मिणः ।सुषुप्तपदमारूढा जन्मयोग्याः पुनःपुनः

In plain words

All these -- the stationary things and the rest -- being wholly of the nature of the inert, have mounted to the state of suṣupti; they are fit for birth, again and again.