This is a clear symbol of the loss of vital energy.
Gallery of dreams
Improving memory can be done in a number of ways, and one of those is by having a good night's sleep. During sleep, your mind is still busy and going through the process of consolidation, where it strengthen your memories as well as the "practice" skills, which you have learned while you're awake. According to the associate professor at NYU Langone Medical Center, Dr. Rapoport says that something happens while we are all sleeping, and it helps us learn things better. Thus, if you're trying something new, you can perform it better right after you sleep.
Have you ever remembered your last dream? Were they colorful? Yes. Most of the dreams will be colorful as experienced in reality. Very few people visualize dreams in black and white. A study was conducted where the individual was given a color chart and asked to match colors that they dreamt. Most of them chose light colors while very few choose only black and white. It was very clear from this study that most of them have colorful dreams.