Benevolent: Do you dream about that big black dog many times? That means you have hurt him in your life or past lives. Look at your dreams It should be a deep hatred. You can still hit him with your fist, which means that your reward is still heavy now, and it can't help you, but it will pose a threat to you when your yang is insufficient in the future.
It is the real solution to suggest that benevolent people treat this matter with kindness. I suggest you read "Guanyin Bodhisattva in Nanwu" for ten minutes every day, and return your merits to the big black dog in your dream. I'm sure it won't be long before he treats you like that.