Analysis of Lowry Bay

I am not here alone. A hidden throng
Is round me in the vesper of the sky.
Dead Babylon and Nineveh are nigh;
Rome, Antioch; the slave who felt the thong;
The lord that slew him when the day was long
And the soul heavy with satiety.
And some are near who saw the Christ go by;
While Pilate shut aloof, at gaze with wrong.
And what are they these ministers surround?
The cliff, the sand, the island at my feet
Reef-scattered far below all human ken.
Lo! God hath made a mighty angel beat
His wings, a benediction in their sound,
Above the roof of the most forlorn of men