After great pain, a formal feeling comes –
The Nerves sit ceremonious, like Tombs –
The stiff Heart questions ‘was it He, that bore,'
And ‘Yesterday, or Centuries before'?
The Feet, mechanical, go round –
A Wooden way
Of Ground, or Air, or Ought –
Regardless grown,
A Quartz contentment, like a stone –
This is the Hour of Lead –
Remembered, if outlived,
This has two possible meanings. 
 
 The narrator’s life/nature continue to “grow” regardless of the fact that she has suffered this tragedy. 
 The idea that the narrator is becoming  “regardless.” That is, the narrator may be losing regard for their surroundings. This supports the first stanza, where the narrator is stiffening and growing cold due to the agony they are suffering. 

After great pain a formal feeling comes J341 F372