If you have good feelings inside of you, you will draw good things into your life. Conversely, if you are experiencing lower emotions of fear and lack, you will draw those experiences to you.
The issues that were created as a result of living in a traumatic situation where never resolved. If you have an issue and it is fully dealt with and resolved, it is no longer an issue. With trauma the experience (what happen, the events, the emotions) get splintered and stored anywhere and everywhere in the body. Because it is not resolved, pieces of the experience will keep coming up to be dealt with and resolved.