Milton wrote Paradise Lost with an underlying meaning. Although it is mainly a religious tale, dealing 
with devils and angels, it also correlates with the life of Milton personally and publicly.  An aspect of 
his life was lost when he became blind. Also he suffered great losses with the death of his wives and 
of his son. These losses must have greatly affected Milton and spurred him to write Paradise Lost.  
The public reason for which this poem was written was the religious separation that was occurring at 
the time.  There were disagreements between Protestants and Catholics and the struggle between 
them can be seen in the poem.