Cause nothing like that exists, you die and you just die there's nothing after it. The vital processes that make you live just stop nothing dramatic after that
Man: start to think better things in Life.
You may even find Happiness.
Thank You.
Unfortunately, you will have an eternity of pain if you don't turn to God in this life.
Got one thing to say S-U-R-E (sarcasm if you didnt get it)
Because they know that He exists, so they are trying to find out more about Him.