Think about this for a minute. The common view of humans on earth is to believe life is eternal. When our bodies die we become souls and move on to something new. A rebirth. A second chance. A greater existence in some unseen way. What if none of that is true and when our bodies die so does our soul?
For many that might be a difficult question to answer truthfully because religion, in all of its different forms, has outlined strict moral guidelines for society to follow and believe or suffer the consequence of eternal damnation. In some religions just having a sinful thought can be enough to banish one into the dark abyss of space forever. Religion also has led humans to believe they are bigger than life and earth was created specifically for them. A resting place to learn and grow before the soul travels on to spend eternity in the greatest of places where we all meet again.
What if there is no heavenly rebirth or eternal damnation? What if we do not meet our loved ones ever again? What if earth is already the greatest of places and humans are nothing more than an accidental blip in space and time, destined to never know we were here in the first place?