Dreams are a healthy and normal process experienced by almost everyone. Especially under times of excitement or stress, your brain remains activity while you sleep, and this is a dream!
No, only if you take them to seriously. Dreams aren't an interpretation of your life, or a sign of things to come. If you take them this way, then yes. Just enjoy them for what they are.
Dreams are a natural state of sleep. If one is deprived of dreaming such as with abuse of alcohol, drugs they will probably feel sleepy or agitated during wakeful hours.
Dreams happen in the subconcious state of mind. sometimes they reveal some truth to us and also tell us future happenings. they inspire us to achieve great heights.