What is peace of mind to become a Buddha?

If you are calm, you will become a Buddha Some people think that if you are calm, you will become a Buddha. This concept is wrong. The reason why all beings can't become Buddhas is that they climb five desires and six dusts and are confused and upside down. Peace of mind is climbing the static dust, and there is "peace". Buddha is the pure consciousness of all beings, and it is impossible to gain heart. To gain is to work hard, which means to be confused. How can I become a Buddha without knowing it? Still an ordinary person.