Watched, from the centre of their sleeping flocks,
Those radiant Mercuries,[FF] that seemed to move
Carrying through ether, in perpetual round,
Decrees and resolutions of the Gods;
And, by their aspects, signifying works
Of dim futurity, to Man revealed.
—The imaginative faculty was lord
Of observations natural; and, thus
Led on, those shepherds made report of stars
In set rotation passing to and fro,