Searching for something in a dream, even when the object is never named, usually reflects an unresolved need -- a question you haven't answered or a longing you haven't let yourself name outright. The search itself, more than whatever you're looking for, is often the part of the dream worth paying attention to.
The comets should be used when they appear and in what they rule; just as fixed stars, they have to be used according to each one's nature. - Picatrix (Andalusia, ~1000.AD)