We have to live as if we have free will and that life has some meaning. Many scientists do not believe in free will or in the possibility that life and suffering may have meaning.
Of course, they may be right. You are born somewhere, and you will die somewhere, and that's it. And you can not change anything. This idea can make you cynical and coldhearted.
However, if you are deeply convinced that life is important and meaningful, this conviction can make you feel stronger and more focused.
If it turns out that when you die, nothing happens, that there is no afterlife, that you will not be rewarded or punished for your good or bad deeds, you will not be disappointed. You are not there to notice.
