In the Next Life, Canto II, stanzas 68-71

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4797 Part II
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The space is what stands out as I look down:
a nearly perfect circle in the corn.
The recent drought has left the leaf tips brown,
but now they sparkle in the dew of morn.

True, elsewhere in the valley it’s the same:
the green and brown, but not so well defined.
That geometric contrast needs a name
so I can store it better in my mind.

Around the space, and facing in, the crowd,
afraid to close, too proud to move away.
Their threats and insults cross the space,
so bright that from this hill I make out all they say.

The center of the space is occupied,
a shadow spreading out each way is cast,
and our attention is all drawn inside
by she through whom I’ll prove myself at last.

©2010 Louis A. Merrimac

So bright: Merrimac never elaborates on the carriers’ method of communication as much as I would have liked (see the earlier ‘message’ line), although he develops it a little more in Canto III than in the instant passage. Apparently they flash some sort of light signals.