Major Themes
The Destruction of Innocence
Throughout both Songs of Innocence and Songs of Experience, Blake repeatedly addresses the destruction of childlike innocence, and in many cases of children's lives, by a society designed to use people for its own selfish ends. Blake romanticizes the children of his poems, only to place them in situations common to his day, in which they find their simple faith in parents or God challenged by harsh conditions. Songs of Experience is an attempt to denounce the cruel society that harms the human soul in such terrible ways, but it also calls the reader back to innocence, through Imagination, in an effort to redeem a fallen world.
Redemption
Throughout his works, Blake frequently refers to the redemptive work of Jesus Christ. While he alludes to the atoning act of Christ Crucified, more often Blake focuses on the Incarnation, the taking on of human form by the divine Creator, as the source of redemption for both human beings and nature. He emphasizes that Christ "became a little child" just as men and women need to return to a state of childlike grace in order to restore the innocence lost to the social machinery of a cruel world.
Religious Hypocrisy
In such poems as "Holy Thursday" and "The Little Vagabond," Blake critiques the religious leaders of his day for their abuse of spiritual authority. The men who should be shepherds to their flocks are in fact reinforcing a political and economic system that turns children into short-lived chimney sweepers and that represses love and creative expression in adults. Blake has no patience with clergy who would assuage their own or their earthly patrons' guilt by parading poor children through a church on Ascension Day, as in "Holy Thursday" from both sections, and he reserves most of his sharpest verse for these men.
Imagination over Reason
Blake is a strong proponent of the value of human creativity, or