Analysis of Suppose

Suppose ... and suppose that a wild little Horse of Magic
Came cantering out of the sky,
With bridle of silver, and into the saddle I mounted,
To fly — and to fly;

And we stretched up into the air, fleeting on in the sunshine,
A speck in the gleam,
On galloping hoofs, his mane in the wind out-flowing,
In a shadowy stream;

And oh, when, all lone, the gentle star of evening
Came crinkling into the blue,
A magical castle we saw in the air, like a cloud of moonlight,
As onward we flew;

And across the green moat on the drawbridge we foamed and we snorted,
And there was a beautiful Queen
Who smiled at me strangely; and spoke to my wild little Horse, too —
A lovely and beautiful Queen;

And she cried with delight — and delight — to her delicate maidens,
'Behold my daughter — my dear!'
And they crowned me with flowers, and then to their harps sate playing,
Solemn and clear;

And magical cakes and goblets were spread on the table;
And at window the birds came in;
Hopping along with bright eyes, pecking crumbs from the platters,
And sipped of the wine;

And splashing up — up to the roof tossed fountains of crystal;
And Princes in scarlet and green
Shot with their bows and arrows, and kneeled with their dishes
Of fruits for the Queen;

And we walked in a magical garden with rivers and bowers,
And my bed was of ivory and gold;
And the Queen breathed soft in my ear a song of enchantment —
And I never grew old....

And I never, never came back to the earth, oh, never and never;
How mother would cry and cry!
There'd be snow on the fields then, and all these sweet flowers in the winter
Would wither, and die....

Suppose ... and suppose .