Erratic Tone

The erratic tone within the poem A Song of the Degrees matches the author's crazy mind perfectly. The poem is broken into three separate roman numeral sections. Once a different passage starts, the tone grows abstract instead of a crescendo into something spectacular. The first section simply states the fearful problem: "Rest we with Chinese colours, for I think the glass is evil." But then the second section arises into the speaker acting as if they've already known all about this evil, stating that they have seen it for themselves on multiple occasions. During the third section, the speaker suddenly explodes into a fury and persistently asking the glass why it's so evil. The tone changes from neutral to a smart aleck way of dealing with conflicts into an emotional, questioning frenzy. Also, in case one hasn't noticed, the "fearful problem" is simply a glass looking evil. Please tell me why it scares the speaker so much? Given the inconsistent tone and the abnormal subject, I can infer the conclusion that the speaker is certifiably insane. The tone usually reflects the author's mood so the author is obviously in a state of turmoil and anxiety. Of course, this cuckoo author would nevertheless be the extremely famous Ezra Pound. Personally, he must have written this poem in the midst of his mental breakdown when he gave up on preaching to America how perfect they could be post-WWII. Or I'm all wrong and tone is only a minor detail compared to what Pound really wants to master: the Imagist movement. More than likely, this is the correct answer. The tone in the second passage is created by the words "melting", "stone-bright", "silver crashing", etc. These words are more informative, giving the intellectual voice to the poem. The tone in the third passage is made by the parallel questions starting with why, having extremely short phrases, and ending with exclamation points. Obviously, the tone is a sign of distress. The passage also consists of the description words such as "light", "glitter", "powdery gold", and "amber". If writing a poem with an irregular tone was part of the Imagist movement that Pound strives for, I personally think he succeeded. (Even though, I personally find him simply crazy.)