Answer:
Mephastophilis is a complex character whose motives are not obvious. Despite being a devil, he does not readily support Faustus in making a deal with Lucifer. He tells Faustus how horrible hell is, so that Faustus knows what kind of a future awaits him if he barters away his soul. Having experienced the happiness of heaven, Mephastophilis is torn between heaven and hell. He is unhappy in hell and confesses to Faustus that he is tormented there:
Why this is hell, nor am I out of it.
Think'st thou that I, who saw the face of God,
And tasted the eternal joys of heaven,
Am not tormented with ten thousand hells,
In being deprived of everlasting bliss?
O Faustus, leave these frivolous demands,
Which strike a terror to my fainting soul!
By warning Faustus of the nature of hell, Mephastophilis offers him an opportunity to reconsider his decision and turn away from evil.
Step-by-step explanation: