I could be completely off base here. But...
At one point, he begins to question the existence of God and the fact that man is conscious of whether or not he is virtuous. He talks about martyrs who have faith and therefore suffer their burdens, and about Saint Paul who was very aware of his sins, calling himself the 'chief of sinners'. So it sounds to me that by having faith and belief in God, you are actually farther from happiness and spend more time suffering injustices.
He then makes a statement about throwing aside conscience and offering gifts to the Devil, because the life he provides would be a life of greater ease than that which the idea of God provides. Whether or not he actually means this, I can't tell, and personally, I'm not sure if he knows whether or not he means it either.
That's what I read, but like I said, I could be totally missing the point.
