That's what faith and beliefs are about, believing in the irrational and the improbable no matter what is established to a appealing degree..
Humanity has been asking the gods for help with sickness and death for thousands of years, who knows maybe this will continue on for another thousand years. ?
In the mean time I think its better to deal with the probable to what we have within the known and accepted physical world.
Waiting for the gods of ancient times to help us out is not really a good wager to make wholly based upon the inspired imaginations of few men who lived a long time ago.