I tot this topic had been discussed several times here adi? Anyway...

If u believe in god, take a religion and believe till the end. Otherwise, no point looking into any religion exist in this world.
While no matter what ppl think or say about life after death, existence of ghost, aliens, bla bla bla....no one can exactly tell the 'fact' and if u really look into it, u will only overwhelming with all types of thing bout death but never truly understand what death is.
Since life is a mystery itself, why bother looking for answer that can never be answered?
Live ur life to the fullest as we know we have only one.