If it turns out that it’s not true that the deathless is attainable, still you’ve lived an honorable life. So even at the very beginning, it’s a good bet.
"You place your bets on the idea that a deathless happiness is possible. That’s a safer hypothesis than saying it’s not possible. If you believe it’s not possible, you’re never going to do the actions that might possibly take you there. Now, if it turns out that it’s not true that the deathless is attainable, still you’ve lived an honorable life. So even at the very beginning, it’s a good bet." ~ Thanissaro Bhikkhu "To Escape the Prison of Time" (Meditations11)