Krunal Patel William Shakespeare used many different writing devices when he wrote his plays. In Act I of The Tempest, the use of contrasts between characters, setting, and ideas were often used to develop the story, and more importantly, the messages that Shakespeare wished to portray by the play. One good example was how some characters in the first act had their counterparts. Ariel had Caliban, and Gonzalo had Ferdinand. The relationship between Ariel and Caliban could clearly be seen throughout Act I, scene II. Ariel was the "airy sp ....