The bible says in mark 4:39"And he arose, and rebuked the wind, and said unto the sea, Peace, be still. And the wind ceased, and there was a great calm. [40] And he said unto them, Why are ye so fearful? how is it that ye have no faith?
This verse is one of the most important to Christians, Jesus did this to show that their is power in His name.
He was Asleep while the storm took place, but by the opening of his eyes and the Words from Mouth, the wind was ceased...
Thanks @hayemz