My First Postulate, Life is Eternal is similar to Pascal’s Wager. His Wager is, assuming you cannot know if God exists or not, you can wager that God exists or wager that God does not exist but wagering that God does exist has a better utility.  You wager with your life.

To put the wager into its 17th century context:

The Stanford Encyclopedia of Philosophy (Summer 2018 Edition) commentary on Pascal’s Wager:

We find in it the extraordinary confluence of several important strands of thought: the justification of theism; probability theory and decision theory, used here for almost the first time in history; pragmatism; voluntarism (the thesis that belief is a matter of the will); and the use of the concept of infinity.  Hájek, Alan, “Pascal’s Wager”, The Stanford Encyclopedia of Philosophy (Summer 2018 Edition), Edward N. Zalta (ed.), URL = <https://plato.stanford.edu/archives/sum2018/entries/pascal-wager/>.

Within the lifetimes of both Wallis and Pascal, On June 22nd 1633, Galileo Galilei was charged with heresy and sentenced to house arrest for promoting the fact that the Earth was NOT the center of the universe.

However as noted in the above quote thought had only recently evolved enough to start grappling with the concepts of infinity and the parallel concept of eternity. It would take further evolution of thought to Einstein’s era to understand that the center of the universe is wherever we call home.

In like manner I refine the decision theory components of Pascal’s Wager to account for the wager never reaching pay off at a fixed time in the future with a heaven or hell pay off, but rather a moment-by-moment analog choice and pay out throughout eternity. Being thus has the constant expectation of greater good, a more perfect present.