As Watchers hang upon the East — Mirage

As Watchers hang upon the East, 1
As Beggars revel at a feast
By savory Fancy spread-
As brooks in deserts babble sweet
On ear too far for the delight,
Heaven beguiles the tired.

As that same watcher, when the East 7
Opens the lid of Amethyst
And lets the morning go-
That Beggar, when an honored Guest,
Those thirsty lips to flagons pressed,
Heaven to us, if true.
(F.120/J.121)
[1–12] deserts, beguiles, if true:: This poem is about a traveler alone in the desert who sees mirage and himself.
[3–6] Fancy, brooks, deserts, beguiles:: a hint on mirage.
[1, 7] Watchers, Beggars, watcher, Beggar:: plural and singular, caused by the disturbing mind of the narrator.
[12] Heaven, if true:: what they see is not true. us:: the narrator and his fancy vision of himself.