According to Native Americans, dreams that humans have while they sleep, are sent by sacred spirits as messages. According to their Legend, in the Center of the Dream Catcher there is a hole. Good dreams are permitted to reach the sleeper through this hole in the web. As for the bad dreams, the web traps them and they disappear at dawn with the first light. For some, they try to determine what messages are being past onto them and what the message represents ..
This tells more about them Frank . They aren't really just for bad dreams .