How much is one second compared to 80 years? Virtually nothing. Would you be willing to invest one second of your time to ensure that your next 80 years would be blissful? You would never be tired or sick or stressed out, lack money or happiness etc. etc.? OF COURSE YOU WOULD!!! Everybody would.
Well, the 70-80-90 years we live compared to eternity are FAAARRRRR less time mathematically than a second compared to 80 years. So isn't it worth it to invest in the real plaesure of eternity that Hashem wants to give you??
Here are some DEEEEPPPP words about eternity, true pleasure and what it means to be a Jew.