Rain falls because it has to; nobody accuses a storm of putting on a performance. That is why the opening line is so sharp. "You imitated rain" does not say the lover was like rain or brought rain. It says they copied it. From the first words, the tenderness on offer is a performance, and the speaker has seen through it.
The poem's central idea is the gap between how affection sounds and what it is for. The speaker is showered with attention, but the shower leaves her unfilled and the final line shows what it was working towards: "As you try to own my body." What looked like romance turns out, on this reading, to be an attempt at possession.
The structure carries that idea. There is no rhyme and no punctuation, so the poem relies on repetition instead. Three lines in a row follow the same pattern: rain "cascading down my body", words "cascading down my mind", a kiss "cascading down my lips". The repeated word gives the lines a falling rhythm, like water running down glass, and its soft, hissing sounds suggest rain. But "cascading" is also a big word. It belongs to waterfalls, not drizzle, so the lover's attention feels overwhelming rather than gentle. The repetition can also be read as monotony. The same gesture arrives three times in three places, like a script run through in order. Look, too, at the pronouns. "Your" words and "your" kiss do the acting, while "my" body, mind and lips are only the surfaces that things fall on. The speaker is grammatically passive, and the last line makes that passivity feel like a threat.
Then the pattern breaks with "Jams and jellies", the oddest moment in the poem. The line is short and abrupt, a stumble after three smooth ones. The image is homely and a little childish, which punctures the romantic mood. Jam and jelly are sugary, sticky and preserved rather than fresh, the opposite of rain. Judging by the context, they stand for sweet talk, flattery thick enough to cling. The verb "Filled" then serves two objects at once: "your words and my hollow heart". Something can be filled and hollow at the same time only if what fills it has no real substance. One possible reading is a jam-filled pastry, stuffed with sweetness around an emptiness, though the poem never says so outright. Either way, the heart stays hollow however much is poured in.
The grammar of the last line matters as well. Everything before it is in the past tense: "imitated", "Filled". Then comes the present tense, "you try". The shift moves us from memory to an ongoing struggle, and "try" suggests the attempt has not yet succeeded. The line also begins with "As", so it reads like a clause still unfolding, and with no full stop the poem never closes. "Body" appears in the second line and again in the last, so the poem begins and ends with the same part of the speaker. In between, the lover's approach moves from imitation rain to open ownership, though the speaker's own voice stays steady throughout.
The title is the lowercase word "rain", set in quotation marks, as quiet as the poem's big verb is loud. The name attached to the poem, "Fallen angel", adds an echo. Rain falls, "cascading" is a word about falling, and a fallen angel is something that has fallen too. The poem does not explain this link, so it is best treated as a suggestion.
The poem is significant for how much it does in seven lines. It takes one of poetry's oldest comparisons, a lover's affection as rain, and turns it by changing a single verb. It uses repetition to build a mood and one jarring, sugary image to break it. And it shows how flattery and desire can be a form of control, which gives a short, unpunctuated poem a use beyond its length: it teaches the reader to ask what sweet words are for.