When primroses are out in Spring, And small, blue violets come between; When merry birds sing on boughs green, And rills, as soon as born, must sing;
When butterflies will make side-leaps, As though escaped from Nature's hand Ere perfect quite; and bees will stand Upon their heads in fragrant deeps;
When small clouds are so silvery white Each seems a broken rimmèd moon— When such things are, this world too soon, For me, doth wear the veil of Night.
Love has earth to which she clings With hills and circling arms about— Wall within wall to shut fear out. But Thought has need of no such things, For Thought has a pair of dauntless wings.
On snow and sand and turf, I see Where Love has left a printed trace With straining in the world's embrace. And such is Love and glad to be. But Thought has shaken his ankles free.
Thought cleaves the interstellar gloom And sits in Sirius' disc all night, Till day makes him retrace his flight, With smell of burning on every plume, Back past the sun to an earthly room.
His gains in heaven are what they are. Yet some say Love by being thrall And simply staying possesses all In several beauty that Thought fares far To find fused in another star.
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Track 1
How this picture is made
What a fractal is
A fractal is a shape that keeps its pattern when you look closer. Coastlines, trees, shells, and weather do this. The large form and the small form are the same kind of thing. A poem can be drawn that way. The shape of the whole comes from the shape of the lines.
Primunia is the name for the source of that order: the pattern under the pattern, already there in a tree, a shell, and a verse.
How the boundary is drawn
The number under the picture is the poem constant. It is read from the build of the lines: their length, how uneven they are, the size of the stanzas, the share of vowels, and the way the lines end. A new word moves the number when it changes that build. The same poem always gives the same number.
Drawn on its own, that number sits in a quiet part of the plane, and most poems would look like the same soft disk. So the number is carried outward along its own direction until it meets the edge of the Mandelbrot set, where the shape turns sharp. The picture is the Julia set of that meeting place.
Each point on the canvas is folded again and again by one small rule. Points that stay near the rule form the dark interior. Points that rush away become the coloured bands. The hue comes from the poem constant, and the brightest bands turn toward gold. Change the length of a line, the stanza, or the vowel share, and both the number and the picture move.
What the branching signifies
Branching draws the poem as a tree. Each turn follows a line, and every smaller branch repeats that pattern. A longer line reaches farther. The letters at the start of a line bend the next turn. A higher share of vowels opens the branches wider.
The trunk takes its colour from the poem constant and warms toward gold at the tips. When the poem has more than one stanza, gold forks leave the trunk. Each fork is a stanza beyond the first, up to three. The tree divides where the poem divides. One stanza remains a single trunk.