Clinging to our individuality and fear of losing our self is actually what gives us the terrible illusion of death being the end. When we willingly give up our individuality at death and become one with the whole, we reach a state of complete bliss. Clinging to our separateness at death brings about reincarnation into another form we identify with. Clinging to fear brings fear, Clinging to hate brings hate, Clinging to love brings love. Clinging to nothing brings everything - nirvana, heaven.
Logic is just a tool, as mathematics is a tool to measure.
Logic is not relative to all situations. We cannot use logic to understand what we really are, it is like trying to measure love with mathematics - its not possible. We are infinity, as all is infinity. Trying to define infinity is ludicrous, trying to understand infinity with logic is ludicrous. Understanding what happens after death is not important and a waste of time, evolving so that at death we can transform to the next state that we need to evolve further is all we really need to do here.