Meaning “There is no birth and death for the soul . The soul is unborn, eternal, ever existing and primeval . It never ceases to exist and is all pervading from time immemorial beyond the end of the physical body.It is never destroyed ,when the body is slain. O Parth, when the person becomes aware of the fact that the soul can never be destructed, destroyed, is everlasting, eternal , unborn and immutable neither kill anyone or make someone kill any other being.” ExplanationThe lord makes it very clear that the existence of the soul  can-not be compared to the existence of the body. This soul exists in every atom of existence. This is eternally existing and is neither born or die beyond the existence of time and space. A man of wisdom realizes this fact as he is able to witness this reality in every atom of existence,contrary to an ignorant man ,who considers a material body as the  reality and gets confused. This soul is eternal, never born,never kill and never gets killed.