Jewels
To see or wear jewels in your dream signify a value within yourself or within others in which you admire and cherish. It also symbolises pleasure, riches, ambition and spiritual protection.
Jeans
Wearing jeans in your dream may simply be a reflection of your waking Self and bear no additional significance. However, if there is a particular focus to the jeans, then the dream means that you need to take a more relaxed approach to some situation. If you are wearing or buying designer jeans in your dream, then it indicates that you have a relaxed attitude about money and other financial matters.
Jackhammer
To see a jackhammer in your dream suggests that you need to make some drastic changes in your life. Break away from your old outdated attitudes and habits.
Jumping
To dream that you are jumping indicates that you need to take a risk and go for it. You will overcome your obstacles and find progress toward your goals. Consider the metaphors “jumping for joy” to mean thrill and excitement or “jumping the gun” to mean impatience or impulsiveness. The way you feel in the dream will provide additional significance and meaning to your dream.
Jabberwock
To see the Jabberwock in your dream indicates that you lack focus. The dream may also point to insecurities about your physical abilities.