अन्तः संलीनमननं परितः सुप्तवासनम् ।सुषुप्तं जडधर्मापि जन्म दुःखशतप्रदम्
In plain words
Where thought lies dissolved within and vāsanā sleeps all about -- that is suṣupti; though it wears the very nature of the inert, it still yields birth attended by a hundred sorrows.