In the Gospel reading at Mass continuing in Matthew 10, Jesus said to his Apostles, "Do not be afraid of those who kill the body but cannot kill the soul; rather, be afraid of the one who can destroy both soul and body in Gehenna." Here Jesus made it clear that there is life after death and hell exists. I used to teach mathematics at a community college and many students were afraid of the subject because they thought that it's just too hard. I firmly believed that they didn't do well because they were too lazy to think hard, so I bet them that if they should think so hard as if their life was at stake, they would solve all the problems quickly. Now, if we live as if my eternal life is at stake, we would succeed too. In fact, there's no "as if" about it ~ our eternal life is definitely at stake!