If anybody's friend be dead
Sharpest of the theme
Not 'sharpest of the pain'—the sharpest part of *thinking about* death. Dickinson isolates the specific mental act that hurts most.
A prank nobody knew
Private jokes die with people. The word 'prank' is startlingly playful for a poem about death—she's cataloging what actually gets lost, not abstract 'memories.'
You almost feel the date
The paradox: recent enough to remember the exact day, but already unreachable. 'Feel the date' makes time physical.
Dip your fingers in the frost
You reach for their smile and touch ice instead. The physical gesture makes the impossibility visceral—this is what trying to remember feels like.
This grand thing
The dead person becomes 'this grand thing'—monumental but no longer human, no longer capable of reciprocal memory. The casual 'chatted close' makes the transformation more brutal.
The quick of woe
'Quick' means the living, sensitive flesh under a fingernail. The worst grief isn't that they're gone—it's that we can't measure how far gone they are.