IV
Light and more light! The spark from heaven was there,
The flash of that reintegrating fire
Flung from heaven's altars, where all light is born,
To feed the imagination of mankind
With vision, and reveal all worlds in one.
But let no dreamer dream that his great work
Sprang, armed, like Pallas from the Thunderer's brain.
With infinite patience he must test and prove
His vision now, in those clear courts of Truth
Whose absolute laws (bemocked by shallower minds
As less than dreams, less than the faithless faith
That fears the Truth, lest Truth should slay the dream)
Are man's one guide to his transcendent heaven;
For there's no wandering splendour in the soul,
But in the highest heaven of all is one
With absolute reality. None can climb
Back to that Fount of Beauty but through pain.
Long, long he toiled, comparing first the curves
Traced by the cannon-ball as it soared and fell
With that great curving road across the sky
Traced by the sailing moon.
Was earth a loadstone
Holding them to their paths by that dark force
Whose mystery men have cloaked beneath a name?
Yet, when he came to test and prove, he found
That all the great deflections of the moon,
Her shining cadences from the path direct,
Were utterly inharmonious with the law
Of that dark force, at such a distance acting,
Measured from earth's own centre….
For three long years, Newton withheld his hope
Until that day when light was brought from France,
New light, new hope, in one small glistening fact,
Clear-cut as any diamond; and to him
Loaded with all significance, like the point
Of light that shows where constellations burn.
Picard in France—all glory to her name
Who is herself a light among all lands—
Had measured earth's diameter once more
With exquisite precision.
To the throng,
Those few corrected ciphers, his results,
Were less than nothing; yet they changed the world.
For Newton seized them and, with trembling hands,
Began to work his problem out anew.
Then, then, as on the page those figures turned
To hieroglyphs of heaven, and he beheld
The moving moon, with awful cadences
Falling into the path his law ordained,
Even to the foot and second, his hand shook
And dropped the pencil.
"Work it out for me,"
He cried to those around him; for the weight
Of that celestial music overwhelmed him;
And, on his page, those burning hieroglyphs
Were Thrones and Principalities and Powers…
For far beyond, immeasurably far
Beyond our sun, he saw that river of suns
We call the Milky Way, that glittering host
Powdering the night, each grain of solar blaze
Divided from its neighbour by a gulf
Too wide for thought to measure; each a sun
Huger than ours, with its own fleet of worlds,
Visible and invisible. Those bright throngs
That seemed dispersed like a defeated host
Through blindly wandering skies, now, at the word
Of one great dreamer, height o'er height revealed
Hints of a vaster order, and moved on
In boundless intricacies of harmony
Around one centre, deeper than all suns,
The burning throne of God.