The poison tree the author speaks about the containment of emotion.The author is angry at his friend but forgives him so his anger ends.”I was angry with my friend:I told my wrath, my wrath did end.”(Blake)."I was angry with my foe:I told it not, my wrath did grow."(Blake)The author gets angry with his enemy but doesn't tell him so it doesn't end , and grows into a tree.The tree then produces a fruit, “Till it bore an apple bright.”(Blake)The enemy steals the apple, and eats it.The foe who ate the apple lies died under the tree of poison “My foe outstretched beneath the tree.” (Blake) .This poem main theme is the containment of emotions.William Blake uses tone,metaphors,and other literary devices to express the theme of emotions in his poem.
The tone of the poison tree switches from being able to forgive to anger.”I was angry with my friend:I told my wrath, my wrath did end.”(Blake) He forgives his friend and the anger ends immediately.Then he talks about his enemy "I was angry with my foe:I told it not, my wrath did grow."(Blake) This shows that the tone has changed.The author was able to forgive his friend but not his enemy.This leads to his anger to keep growing my wrath did grow."(Blake) This brings us back on the theme of containment of emotions.The author has a change of tone we he speaks of his foe.His foe is the reason of his anger.If the speaker would to talk to his foe it might just end.The containment of emotion