Meng Po, what does a bowl of soup mean?

It is said that Meng Po was born in the Western Han Dynasty and studied Confucian books since childhood. When he grew up, he began to recite Buddhist scriptures. When she was alive, she never looked back and never thought about the future. She just wholeheartedly advised people not to kill, but to be vegetarian. She was a virgin until she was eighty-one. She only knows her family name is Meng, so she is called "Granny Meng Po". Later, Meng Po went to practice in the mountains until the later Han Dynasty. Because at that time, people who knew the karma of past lives often revealed secrets, therefore, God appointed Meng Po Lao Nai as the god of the underworld and built a platform for her to forget.