I am just providing one answer I have given for "whether life exists aftet death or not" or to see my answers, kindly look at the yahoo id r_govardhanam
"First of all you will have to over come the current concept of "you" to understand "death" and the "life" after. Let me ask, will water exist once it evaporates? Will water exists once it disintegrates to hydrogen and oxygen? If the same atoms of H and O integrates and become water again will you call the same or different water? Assume all your body cells disintegrates and integrates to become in the same shape you are in. Will you say the same or different?
If you want to say same, you are a believer in after life. If you say different you don't believe in after life. But, does that belief make any difference in the everchaning world which integrates, creates and disintegrates in same, different and uniform forms? think
Then there is something which is subtle. Changes at a different pace than the material. Science(lab tests) are not near anywhere to assume at what level it operates, integrates and disintegrates. So the very understanding of our life by us itself is so biased, any enquiry after that also will be biased. Our existence is at one temperature, space and speed. What if you start moving faster than light? Do you exist or do you exist differently or something else exists then?????????
The moment you realise your existence as a non-existence, you will realise the death(just a name to the process called evaporation) as a non-death and the after life obviously become present life. That is the proof."