From the case of A in the eighth volume of Yuewei Cottage's notebook, the following enlightenment could be obtained: 1. Bad karma: A lost his way in the mountains and was bitten by a poisonous snake, eventually dying. However, after his death, his soul was captured by the gods in the Shing Wong Temple and punished. This showed that karma was not good for those who did bad things. 2. Act with caution: In the story, A carefully followed every path when he was lost in the mountains. He didn't easily trust others or his own thoughts. This cautious attitude can help us avoid making mistakes and stay alert in life. 3. Independent thinking: Although A was very afraid after being bitten by the snake, he was still able to think independently and take the right action. This showed the importance of independent thinking. In life, we need to have the ability to think independently to make the right decisions. 4. Tenacity: Although A encountered many difficulties and challenges in the mountains, he did not give up. He persevered in finding his way home and finally got his punishment. This showed the importance of perseverance. In life, we need to have the quality of perseverance to face the challenges and difficulties in life.