The speaker is caught in a painful emotion that keeps flaring up whenever something sets it off. The poem opens with that moment of the trigger, and the speaker's instinct is to fight: "the fighting mode on." The intensity builds, and the "scary shadows of scars" suggest old hurts being stirred back to life. Trying to run from the feeling, or to destroy it, only seems to feed it, and the speaker admits that both efforts are "all on vain."
The turn comes near the end. Instead of struggling again, the speaker wonders whether to stop escaping and "liberate the trigger," letting the feeling go free. The last line, "Set me free," shows that freeing the emotion and freeing oneself are really the same act. The mood begins tense and exhausted, with short, jagged lines that feel like a racing mind, then softens into something quieter. It ends with tentative relief, a sense that acceptance might hurt less than constant resistance.