This is similar to the oppositional voices of conscience and desire that occur in man's mind, and that is further represented by the God/Satan juxtaposition in the poem IV. The Conflict

A. In Book Four of the poem, Satan's conflict with God becomes direct and physical when he is discovered by Gabriel, but even here there is a greater sense of internal struggle

B. Satan has doubts regarding his actions and even the possibility of redemption, and he even becomes self-righteously angry when Gabriel accuses him of wrongdoing without proof -- Satan is still a creature that desires good, in some

ways, but it is being denied to him

C. Similarly,...

Conclusion
A. From the initial external frame of the poem, through Satan's uncertainty, and even in the direct conflict between Satan and God (through Gabriel), the sense of Man's presence and of an internal struggle of conscience is quite strong.

B. While reading the text as religious commentary is still meaningful, it is highly limiting

C. Any great work of literature, even the Bible itself, can be explored on many levels, and finding the right depth of a work is essential to full understanding and enjoyment.