What's the point of saying that you were a cat in your last life?

That's good to hear. There is nothing to prove. Besides, even if you were a cat in your last life, you are already a human being in this life, and you have suffered enough. Even if you still have to bear what you can't choose. So why care about this? Even if you were an emperor in your last life, you won't bring the wealth and rights of your last life to this life. What are the benefits? You are still you in this life.