Answer:
In this poem, Blake present the ideas of revenge powerfully by asserting that how he watered the wrath for his foe in his heart.
Explanation:
The Poison Tree is a poem written by William Blake. The poem is about how suppressing the emotions of resentment, anger, and revenge can have adverse consequences.
The poet writes that when he was angry with his friend, he did not conceal it and the emotion of hurt did not stay. But when he became angry with his foe, he concealed it, watered it, and eventually let the wrath come against his foe in the form of murdering him.