Sad – Sadness is a straightforward dream symbol that simply represents the emotion that it is. It is important to remember that the thing you feel sad about in your dream is probably symbolic, and may not be the same thing that you are sad about in real life. Depending on the other elements in this dream, this symbol may be a warning that something bad is going to happen, or a sign that you feel insecure about something important in your life. If you dream that you are sad to the point of sobbing in your dream, especially if you dream that you cannot breathe well through your sobs, this may be a sign of sleep apnea. Often physiological symptoms such as difficulty breathing are translated by the brain into dream events.