English meaning
You have need of this thoughtless understanding, for then that still and silent Self will not be confused, by the confused (ie. mind). That Lord of the world has created this world in an orderly sequence by first creating this `all'. Now by understanding this `all' once more, this process will be reversed and then you can understand thoughtlessness (there is the One parabrahman and then there was the `two' purush/prakruti; this `I am', `all' etc. concealing that knowing purush. Then the gunas appeared and from tamo comes the great elements, space, wind, fire, water and earth; then comes the most gross or objective when the mind becomes body conscious and sees many objects and thinks about many things. Now follow this process back to that thoughtless Lord, I do not exist). .