Having dreams is a common human experience, and keeping a dream journal helps to preserve these nighttime experiences that we tend to forget quickly. Dreams can include exciting activities that don’t happen in waking life, such as flying, solving complicated equations, listening to beautiful music and more.
Writing down our dreams takes a great deal of discipline and willpower, but it is a worthwhile experience. After waking from a dream, try writing down the full details as soon as possible. Even if it is just a word or a sentence, take the time write it down in a dream journal with the date. Be sure to check the entries periodically and review them for any correspondence with life events.
Source: Paul Emekwulu, speaker and author of Writing Down Your Dreams: Listen to Your Inner Voice and Change Your Life.