What trouble our imaginations can make for us. The Pharoah who ruled Egypt many years after Joseph imagined that the Hebrews, who had become very numerous, could join with an enemy and attack Egypt where they were living. As a result he brought great suffering to the Hebrews, making them work as slaves harder and harder, and then killing the baby boys.

In the time of Noah, God sees "that every imagination of the thoughts of man's heart (is) only evil all the day". Things are invented in the heart, imagining what we might do and imagining what others might do and these imaginings become forceful to action and if the imagining is evil then the action which follows it will be evil. Do not believe imagination; it is fiction not fact.