eternal life

I've got this insurance, it just cannot fail            It's certainly foolproof and pays on the nail            It covers the seasons of plenty and strife            It's backed by the promise of eternal life.            The eternal salesman will knock at your door            By letting Him enter, your prospects will soar            He'll leave a memento, a guide to your plan            By quoting you happy, he'll do all He can.            The catch is quite simple, you follow His rules            To keep you apart from a world full of fools            The payout is treasure, put by up above            Safe from destruction, invested in love.