Is it possible for one to possibly know what exists after death? As humans, with a mind that exists solely as physical matter (and a soul, if religion is counted), when we die, how is it possible for this purely physical mind to keep on functioning, and allow us to realize that we are dead? As well, if we have souls, how can an entity created purely of energy (or whatever you think a soul is made of) have senses and detect that it exists, or even think?