Cancer 
To dream that you have cancer signifies a sense of despair, sadness, and pity. You also have an inability to exonerate or condone. You believe that you are throwing your life away one minute at a time. This dream also suggests there are aspects about your life that you are happy with, that are causing you grief, or are in some other way creating emotional pain.
To dream that someone else has cancer suggests that you should consider altering your antipathetic demeanor or manner of thinking before it becomes a cancer within your own life. Become more optimistic.
Leo
In a dream, a Leo represents the strong character traits of that sign. The Leo is a bold, outgoing, and creative person. The symbol of the Leo is a lion, whose strengths are leadership and loyalty to family. You may desire to strengthen these character traits as they exist in your own personality.
Aries
Aries symbolizes the Ram which governs the head. It is usually associated with reddish in color which implies clashes and confrontations thus a new change or starting over is strongly tied to this dream.
It also may be telling you that your personal matter may need be dealt head on, or may indicate a stressful situation you're going through at this time that needs attention and be taken care of right away.
Gemini
To see a Gemini in your dream represents your relationship with opposing forces of something around you acting cooperatively and identically inside. It's a perfect balance of emotion, life style and temperament.
Aquarius
Dreaming of the Aquarius constellation symbolizes a new beginning.
To see yourself or somebody else as an Aquarian in your dream symbolizes fertility, growth and rapid change. In addition, it may also be a signal to slow down and take some time out to appreciate life. Consider a 'sea change'.
Capricorn
To dream of the zodiac sign 'Capricorn' indicates that a stable, hardworking and confident person may be about to enter your life. You may feel abnormally confident, strong willed and calm in their presence but it is important that you acknowledge these qualities as coming from within so as to avoid projecting neediness onto this person. You may find that you will complete an unfinished goal due to their influence.
Sagittarius
To dream of a positive Sagittarian coming to see you may indicate that you are ready to open up a new aspect of self; an optimistic, freedom-loving, honest, and philosophical side that you may not have considered you possess.
Dreaming of a negative interaction with a Sagittarian implies that you may have been tactless, irresponsible, and superficial recently. There is a need to make amends.
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