Neither mind nor body

To know that you are neither body nor mind, watch yourself steadily and live unaffected by your body and mind, completely aloof, as if you were dead. It means you have no vested interests, either in the body or in the mind. p201

... I am not asking you to commit suicide. Nor can you. You can only kill the body, you cannot stop the mental process, nor can you put an end to the person you think you are. Just remain unaffected. This complete aloofness, unconcern with mind and body is the best proof that at the core of your being you are neither mind nor body. What happens to the body and the mind may not be within your power to change, but you can always put an end to your imagining yourself to be body and mind.

Whatever happens, remind yourself that only your body and mind are affected, not yourself. The more earnest you are at remembering what needs to be remembered, the sooner will you be aware of yourself as you are, for memory will become experience. Earnestness reveals being. What is imagined and willed becomes actuality--here lies the danger as well as the way out.
-- Sri Nisargadatta Maharaj, I Am That