Scene 5 is one of the longest scenes in the play as well as one of the most important. Why is this? What is its significance? -- Christopher Marlowe's "Dr Faustus"

Scene five is an important scene because it is the first time that we meet Lucifer, Mephastophilis' master, the hoarder of the damned souls. Faustus is selling his soul to be more powerful as God, yet he refers to God many times, such as when he speaks of being stronger than God in powers, but having people respect him like he is God. But in selling his soul to Lucifer, he gains no powers that …

…to his arrogance he ignores them and continues with selling his soul, the Evil angel was the last to speak both times, showing that Faustus is listening to the words of the Evil angel more than he is of the Good angel. Although the Good angel starts the conversations between Faustus and the conscious, the words of God are crushed when the Evil angel plays of Faustus' desires of Power and Knowledge about all things.