How do the themes of wrath and secrecy intersect over the course of
the poem?

This excerpt is from the poem A Poison Tree

Explanation:

The poem details two different approaches to anger. In the first, openly talking about anger is presented as a way of moving past it. In the second, the speaker outlines the danger of keeping anger within. The poem uses an extended metaphor to describe the speaker's anger as growing into a tree that bears poisonous apples. The speaker describes admitting his or her "wrath" to a friend; as soon as the speaker does so, this “wrath” ends. Honesty and frankness, the speaker makes clear, causes anger to disappear.