Sirens 
To dream of hearing sirens signifies a situation or problem that is giving you much stress. The sirens may serve to get your attention and focus on the problem at hand.
Sneeze
To dream that you sneeze implies that you are satisfied with your current position and situation in life. You are experiencing happiness and great comfort.
Flying
To dream that you are flying generally suggests a feeling of being unencumbered where previously you may have been held down.
To dream that you are flying with ease and enjoying the view indicates that you are dealing with circumstances well. You have elevated above some situation and you may have found a different point of view on things. Dreams of flying and managing your flight is indicative of your own sense of empowerment.
If you're dreaming that you are having trouble staying in flight can represent a feeling of powerlessness. You may not feel as though you control your destiny. Things may be feeling as though they are getting the best of you. Barriers like power lines, trees, or mountains can represent people or things in life that are blocking your progress. You need to figure out who these people are.
If the landscape below your flight is full of green life then you will endure momentary humiliation but once that is past, then you will reap rewards.
To dream about seeing the sun while you're flying suggests concerns that have no power over you since you will succeed in spite of them.
To dream about flying through the firmament passing the moon and other planets indicates starvation, war, and the tragedies of ancient periods.
To dream that you are flying with black wings indicates that you may encounter terrible setbacks.
To fall while you're flying represents your ruin. If you wake while you are falling, then you will manage to pull yourself back up and reestablish yourself.
Voyage
To dream of taking a voyage or a long trip implies great luck and fortune. You will soon receive the benefits of an inheritance. Be aware, as it may not be money!
Conversely, if you see yourself taking a voyage that ends poorly, consider those around you. Your love may not be faithful to you.
Clouds
To dream of fluffy white clouds implies that aspects of your life are in balance. You may have just resolved a troubling situation.
To see grey and gloomy clouds in your dream represents feelings of anguish or wrath. Some issue is not allowing you to make informed choices.
To see menacing or stormy clouds in your dream may imply a brewing situation that will soon explode with negative feelings. It also symbolizes ignorance and frustration with a certain issue.
Diving
To dream that you are diving into clear water suggests that there will be closure of a humiliating issue. You will endure some trouble, but things will work out in the end. This dream could also suggest that you are working to uncover the root of a difficult situation. It could also be representative of your subconscious.
To dream about diving into muddy water indicates that your dealings will cause your grief and stress.
To witness others diving in your dream signifies a sense of harmony with your feelings and mental stability.
To dream of animals diving indicates that you are digging into your primal and sexual desires that have usually been kept hidden.
Heater
To dream of a heater symbolizes warm emotions, comfort, and nurture. If you have been keeping your feelings to yourself, your dream may imply that you're finally starting to open up and you are ready to experience love.
Vanity
To dream of vanity or being offended by another person's vanity implies that you are about to become aware of your own mortality. This may be in the form of a close call or a simple realization and acceptance of the aging process.
To dream of your own vanity implies that you may need to spend some time releasing your self-judgment so as to enjoy the details of your life more.
BB Gun
If you own a BB gun, dreaming of it may be simply expressing your enthusiasm over it, but keep in mind what you use it for in your dream. Do you shoot it to let off steam and anger or do you have fun as in recreational purpose? The BB gun may be pointing to a more sensitive inner emotion you are trying to suppress. If you don't own a BB gun, dreaming of one symbolizes your very young and innocent exploration into the unknown, dangerous, or adult world.
Bubble
A dream of seeing something or someone in a bubble means that you view that person or object as extremely fragile, susceptible to being easily broken. Alternatively, you may be interested in keeping that person or object safe in your waking life.
Being within a bubble in a dream indicates an internal fear that you are weak and vulnerable.
Dreaming of the kind of bubbles a child would blow symbolizes fantasy and imagination. Your subconscious mind is trying to tell you to be more creative and look at things from a different perspective.