Consciously exist
If you do not consciously exist you do not exist for yourself. You may think that you are connected to a particular body but that belief can be based on a generated sensepath or the manipulation of the your internapath produced by a entirely different itobody or itofazpaducer. There will be an itobody producing your consciousness if you are experiencing consciousness. If you are experiencing consciousness you consciously exist. If you are not experiencing consciousness now, you do not currently consciously exist. If you consciously exist now you can consciously exist any time in the future where any one of a very large number of structures and functionings can exist that will produce your ixperiencitness. This is the type of conscious survival, life after death, and immortality, that awaretheory and many of the sciences that spring from awaretheory deal with.