A Growing Anger "A Poison Tree" by William Blake describes the growing anger in a man because of his hatred for an adversary. Blake compares the growing of anger to the growth and the budding of a tree. Blake also makes allusions to the story of betrayal by Adam & Eve in the Garden of Eden when they eat from the sacred tree. In the poem, the narrator is describing his constantly growing anger towards his adversary, which Blake compares to the growth of a tree. Just as a tree needs sunlight to grow his anger needed a source of energy which happened to be his foe who he hates with a passion.

The anger grows uncontrollably, although he tries to trick his feelings and pretend to be happy but still his anger grows. It grows until it reaches the point where an apple sprouts up from the tree, which his adversary will eat and ultimately die from, thus giving the tree its "poison" in the dangerous fruit. Blake's poem also follows the same story line as the story of Adam & Eve eating the fruit and getting kicked out of the Garden of Eden. In the poem the adversary sneaks into the garden and steals an apple, which he does not know has been spawned by the hatred of the narrator.

The foe proceeds to eating the fruit, which causes him to die under the tree he stole the fruit from. Just as in the story, Satan in the form of a serpent sneaks into Eden and tempts Eve into eating the sacred fruit which she knows not to eat. She does eat from it and takes it to Adam for him to eat from and consequently God throws them out of Eden for disobeying his commands. Their expulsion from heaven is similar to the death of the foe from eating the narrator's "poisonous apple" in the poem.

Through his comparison of the anger to a tree and the allusions to the story of Adam & Eve getting expelled from Eden in the Bible, Blake describes the result of growing anger in a man. It shows that growing anger and hatred ultimately ends up being the downfall of man.