A crack in a dream, such as a crack in a wall or in the sidewalk, can represent a small weakness or flaw that may become larger cause a big problem if you do not deal with it immediately.
If you dream about a crack appearing in something, you could be concerned that a plan that you have will not work out because of a problem or obstacle.
Trying to repair a crack in a dream can mean that you are trying to impose order on a chaotic situation in real life.
You may dream about a crack when you are under a lot of stress and are worried that you may “crack up”.
If you dream about the drug “crack”, you may be concerned that you or someone you know has developed a bad habit or an addiction. The drug “crack” in a dream can also symbolize a crack, or flaw in a plan or in your life.