Never seen the movie, but what I can say that almost proving an afterlife? come on? If by some crazy way they can prove it perfect, like to see the evidence. Almost proven though? Either way like alwin said Imagine every breath is your last and do what makes you happy. If you obsess about death you are already dead. Humans have created the need for an afterlife because death is so scary and unknown. That's why you have to realize all we have is us, everything else isn't realistic to depend on.