Why is the extended metaphor of sight vs. blindness important in this play?
Sight versus blindess is a theme that can also be seen as appearance versus reality. Throughout the play, appearances and perceptions are changed through magic. Magic is a major contributor to this play--without it, the play has no vehicle by which to travel through the plot. Through magic, appearances change, as does reality, which has a direct effect on all the characters involved. For many characters, magic alters their sight, making them blind to reality. For example, Oberon instructs Puck to put the love potion on Titania's eyes in hopes that she will fall in love with a beast--this alters her perception of reality, but also her perception of love (which is also a major theme seen throughout the play).