Your actual survival
Your actual survival through time means more than just your bodies survival through time. If you never experience being alive (being conscious) again this is the permanent end to you, even if your body that was producing your consciousness is still alive. You not only need to keep your body alive you have to have it keep producing a consciousness and your consciousness. If it is your consciousness it means that you expereince it. Experiencing a consciousness is different from experiencing a sensepath. To most conscious beings (humans) you are a body that they experience by way of their senses -- you are part of their sensepath and this creates you in their awarepath. Usually other conscious beings do not see the consciousness that your body is producing so they do not see when your body is producing consciousness and "who" experiences that consciousness. The "who" is the tricky part. The "who" is defined usually as the body. Clearly, for humans, it is easier to distinguish other people by their looks and behavior than by any other way or ways. Your conscious survival is different from your body's survival, even though ones body's survival is usually always thought to connected to ones conscious survival (except with some supernatural theories).