So You Don't Believe in God.
Here is your one sentence answer
You can hang around for the 50 to 70 years of your lifetime but, when you die YOU WILL FIND OUT if you will be partying and exploring with Jesus Christ for eternity, or be thrown alive into the lake that burns with fire and sulphur to be vapourized instantly.
HELL MEANS: THE GRAVE
"...the dead know nothing; they have no further reward, and even the memory of them is forgotten."
"Whatever your hand finds to do, do it with all your might, for in the grave, where you are going, there is neither working nor planning nor knowledge nor wisdom."