Why can't a person be too tactful?

Recently, I heard a saying: people should not be too smooth, too smooth is easy to be deaf and dizzy. This is what I heard from the inside. Grandma told this sentence to Ming Lan, and also told her why the first lady always lost to Lin Xiaoniang. Sometimes, people are just too smooth, and they have no worries about food and clothing since childhood. She doesn't know how to restrain her thoughts and do whatever she wants. But no one can bear it except that your parents will spoil you so much.

It is also the temper of the big lady that makes her suffer a lot in the future. When a husband dotes on his concubine and kills his wife, she becomes a joke in Yangzhou. If it is not always so smooth, then he will constantly remind himself in adversity and constantly improve himself, and his future life will be smooth sailing. Sometimes life gives you some difficulties just to keep us awake. We must always stay awake. Only when we stay awake at all times can our life become beautiful.

Just as Ming Lan has experienced so much pain since she was a child, she knows how to reflect and summarize. Let my life get better and better, and I can face what happened calmly.