Genesis 37:11

And his brethren envied him; they continued their attitude of hateful aloofness; but his father observed the saying, he kept and remembered the words, recalling them, probably, when he was told of Joseph's remarkable elevation some twenty-two years later. It was nothing unusual in those days for the Lord to make known His plans by means of dreams, and He often provided reliable interpreters as well. It is foolish for people in our days to set up arbitrary explanations of dreams.