Sinners in the hands of Angry god

In class the other day, we read a story called "Sinners in the the hands of Angry God". The story is about how people used to think that god would have a Bow and Arrow pointing to your heart, ready to release it any moment. Because of this fear, the people prayed and wasn't allowed/ too scared to "have fun". So my opinion about this is that.....THEY'RE CRAZY! Who in the world would believe that? they had to live in fear for their whole life! However, I understand that there's a difference between the beliefs now and before. The people grew up believing this myth. So they didn't know any better.