To dream that you are in a food fight suggests that there is a conflict between your physical and emotional well being. There is some issue that you need to resolve in your waking life.
To dream of sibling rivalry suggests feelings of insecurity or doubt. You are feeling a lack of love.
To see a strange illumination in your dream represents thoughts from the primal aspects and less developed parts of your subconscious.
To see or use a periscope in your dream indicates that you need to rise above your current situation in order to get a better perspective on things. Sometimes you need to take yourself out of the situation so you can gain a different view. Alternatively, the dream suggests that you need to stop being so linear in your thinking.
