mmunication between Heaven and the new creation, and upon which
angels descended and ascended--

Far distant he descries,
Ascending by degrees magnificent
Up to the wall of Heaven, a structure high;
At top whereof, but far more rich, appeared
The work as of a kingly palace gate,
With frontispiece of diamond and gold
Embellished; thick with sparkling orient gems
The portal shone, inimitable on Earth
By model, or by shading pencil drawn.
The stairs were such as whereon Jacob saw
Angels ascending and descending, bands
Of Guardians bright, when he from Esau fled
To Padan Aram, in the field of Luz
Dreaming by night under the open sky,
And waking cried, '_This is the gate of Heaven._'--iii. 501-15.

Sometimes this mysterious structure was drawn up to Heaven and
invisible. At the time that Satan reached the opening, the stairs were
lowered, and standing at their base he looked down with wonder upon the
entire starry universe--

Such wonder seized, though after Heaven seen,
The Spirit malign, but much more envy seized,
At sight of all this World beheld so fair,
Round he surveys (and well might, where he stood
So high above the circling canopy
Of night's extended shade) from eastern point
Of Libra to the fleecy star that bears
Andromeda far off Atlantic seas
Beyond the horizon; then from pole to pole
He views in breadth, and without longer pause,
Down right into the World's first region throws
His flight precipitant, and winds with ease
Through the pure marble air his oblique way
Amongst innumerable stars, that shone
Stars distant, but nigh hand seemed other worlds,
Or other worlds they seemed, or happy isles,
Like those Hesperian Gardens famed of old,
Fortunate fields, and groves, and flowery vales;
Thrice happy isles! But who dwelt happy there
He staid not to inquire: above them all
The golden Sun, in splendour likest Heaven
Allured his eye: thither his course he bends
Through the calm firmament, (but up or down
By centre or eccentric hard to tell
Or longitude) where the great luminary,
Aloof the vulgar constellations thick,
That from his lordly eye keep distance due,
Dispenses light from far. They, as they move
Their starry dance in numbers that compute
Days, months, and years, towards his all-cheering lamp
T