The answer to this question is breaking of the fourth wall. The fourth wall in a play refers to the figurative dimension that separates the audience and the character's in the play When the actor addresses the audience as he played the character, he breaks this dimension and brought the audiences to directly become a part of the story.
Sparta was a main military power in Greece, all the focus was on military. In Athens, while the military was important, the arts, litiature, and philosophy where also highly valued, where in Sparta, these where considered wastefulness pastimes.
