Facts by our side are never sudden

Facts by our side are never sudden
Until they look around
but[^a1]And then they scare us like a spectre
Protruding from the Ground --

[^a1: but | but]

The hight of our unknowing[^a2]portentous Neighbor
We never know --
Till summoned to his recognition
By an Adieu --

[^a2: unknowing | unknowing]

Adieu till when[^a3]for whence
The wise[^a4]sage cannot conjecture
The bravest die
As ignorant of their resumption
As cowards do --[^a5]you or I --

[^a3: till when | till when]

[^a4: wise | wise]

[^a5: cowards do -- | cowards do --]