I know a person who is very stable. He has the following characteristics:
1, optimistic about everything, feel that no setbacks will crush him, he will say that smooth sailing in life is not a good thing, and he will adjust himself to solve any difficulties.
He is very open-minded about many things and won't blindly ask for so much. He is content and pursues ordinary happiness, so I often go to chat with him and feel very stable inside.
He has many hobbies, such as music, cooking, studying all kinds of things and finding happiness in the little things in life.
A person with stable emotions will really affect the people around him and become as calm, dull and happy as he is.