Anarchist's dream" is a list of three wishes, and the surprise is how gentle the speaker's idea of anarchy turns out to be. We might expect bombs or slogans. Instead we get a black rose "in every hand," a flower that is usually a symbol of mourning or darkness, offered here as something everyone can hold.
The second wish is wilder: "fierce men that ride / without stopping." They suggest speed, freedom, and a refusal to be held back. Then the poem shifts to its final image, a "quiet study filled / with good books." That is a very different picture from the riders, and the contrast is the heart of the poem.
The speaker sounds wistful, even tender. The word "long" tells us these are deep desires, not demands. The mood is calm but restless, as if the speaker wants both freedom and a place to think. The poem suggests that rebellion and reading might belong to the same dream.