Excitement in a dream commonly reflects momentum -- a new possibility that's activated real energy in you, something you're looking forward to more than you may have admitted while awake. The feeling is usually worth trusting; it tends to point toward whatever opportunity has quietly been building anticipation in your waking life.
The astrologer is able to control the actions of the stars if he knows the influx of their nature; is quite likely that he can modify the action before it happens. - Ptolomeus