” If it does please enlighten me. “
The 1st place I can think of is the 2nd parsha of Shema.In a nutshell, its spells out what we can expect for being a team member.
As far a guarrantees, no, nothing is a really a cause-effect ratio, becuase that would preclude free choice (and hinder your ability to enjoy the reward, which you would otherwise earn on your own.)
The 2nd best indicator of how well our system works is our past performance. Look at any funtioning, loving family and you’ll see that for the most part, its the roots that a religion give you, that keep you steady.
Sounds like a ad line, but fact is, once you’re in (meaning: have your own family), you’ll see there really is no better vehicle to get you to the finish line.
3500+ successful years can’t all be a smokescreen.