If dreamed you that the house in which you live cracked, then in reality over your family wellbeing the serious threat hung. To see a crack in a tree means that you need to be engaged in own health.
Subject: Buildings
Look also: House Building To see Tree Surname
Be sure and keep any other thoughts out of your mind before drifting to sleep as a cluttered mind can decrease the chances that you will remember your dreams upon waking. Also, focusing on remembering your dreams upon waking in the morning is another very important thing. This sounds very easy, but is often hard for some to do. Interpret a dream by "dictionary dream of interpretation"
When you very first wake up, simply think about your dreams. Don't allow your mind to drift off to other things, just lay there and think about the things you dreamt about the night before - dictionary dream meaning.