To summarize, subconscious changes in the body might coincide with abrupt adjustments in dream content. Nightmares of unexpected recollections, frequent physical harm, or long dreams with odd or violent images, in particular, might signify oncoming disease. Reaching past one's own limitations to help others is an important aspect of spirituality. Dreams can also reveal aspects of one's spiritual life by showing connections with other people or events outside oneself. Healthy individuals will usually have healthy dreams that do not signal impending doom. However, if you are having nightmares about your illness or death, this may be an indication that your health needs attention. Doctors often tell their patients to record their dreams in order to gain insight into their unconscious mind. The history of dream interpretation goes back thousands of years, all the way to Ancient Egypt.