How can I stop a recurring dream?

The dream - sleeping, open my eyes and a big, black spider falls from the ceiling. I scramble (for real) out of bed in a panic, my heart thudding like a freight train. The spider crawls behind the headboard. I guess that's the point where I wake up...to find myself shaking and standing by the bed. Even though I know it was a dream, I hate getting back into bed. I thought if I could figure out what its about, maybe it would stop.