To a large extent it is the same with us. We have trouble fully appreciating the danger of evil. We have trouble realizing just how great a threat the hells can be. This is because spiritual dangers are extremely subtle. Physical dangers come from outside of us, where we can see and notice them, and avoid them.
Spiritual dangers are different.
Evil lurks within the mind, and so we don't notice evil in the same way. The greatest danger posed by evil lies in the fact that it doesn't seem dangerous to us at all. In fact, we tend to enjoy evil. We tend to love it. It is inside of us.