It was to give the audience pre-existing knowledge about the play that would help with the understanding of the play and its conflicts and often it foreshadows something that is going to happen... for example the begging of Romeo and Juliet when the chorus tells us that there is a feud between the two families and how it was a tragedy of star crossed lovers.
Steady is with constant and delight is with verge and agony.
Answer:
Could I have the answer choices? If not I would say Mystical/Surreal
Explanation:

Sentence is a group of words which makes a complete sense.
Gandalf gets Beorn to shelter thirteen dwarves by bringing them in two by two while he tells an exciting story. ... the mention of the dwarves being attacked by Goblins eventually interests about the dwarves. Beorn doesn't like Goblins or the wolves.