How are dreams formed? Your experiences are data archived in your brain, and are extracted based on the ideas or emotions of the day. When you go through pictures on your iPad, what you feel while looking at the same picture at different times depends on your mood at that time. When you dream, you go through your data archive and extract data based on your state at that instant. Your state dictates the dream! In fact, the people you dream of are not the individuals themselves, rather the values that they symbolize. Purer the archive, purer the dream.