Shakespeare likes to make references to his plays that he has already written and planning on writing. Shakespeare at this time had written the tragedy of "Julius Cesar" and uses it as a reference in the very first scene. The guards show the superstition of the time and Shakespeare's view of all the supernatural. He shows the fear brought to all and foreshadows the horrible things to come with just this first scene and all that will happen. However, he also foreshadows the impending resolution of the entire play with the crowing of the rooster. When the rooster crows all the spirits go to rest and it makes it as beautiful as if it was Christmas. This symbolizes that no matter what bad can happen...