I heard a Fly buzz when I died — Card Cathedral

I heard a Fly buzz－when I died－¹
The Stillness in the Room
Was like the Stillness in the Air－
Between the Heaves of Storm－

The Eyes around－had wrung them dry－⁵
And Breaths were gathering firm
For that last Onset－when the King
Be witnessed－in the Room－

I willed my Keepsakes－Signed away ⁹
What portion of me be
Assignable－and then it was
There interposed a Fly－

With Blue－uncertain stumbling Buzz－¹³
Between the light－and me－
And then the Windows failed－and then
I could not see to see－

(F.591/J.465)

[1] Fly:: a piece of cloth attached to a window or door, a curtain. buzz:: to flutter. died:: shaped, furnished (a card house); failed (in the game of card house).
[2] Stillness:: the motionlessness of the card house.
[3] Stillness:: the quietness of the players and audience.
[4] Heaves of Storm:: the strong wind outside that blow the curtain.
[5] Eyes around:: the audience of the game. wrung them dry:: made the audience nervous.
[6] Breaths, firm:: situation became serious.
[7] King:: the best, winner of the game.
[9] willed, Keepsakes:: determined to get the keepsakes given by others if she could win the game.
[9-11] Signed away, Assignable:: the keepsakes being allocated already before the result.
[13] Blue:: the color of the cloth.
[14] light:: light from the windows when the curtain fluttered.
[15] Windows:: windows of the card house, not the room.
[16] see to:: to take care about. see:: a cathedral, a large church building.

To build a two-story card-house, place on the first roof two cards in the tent-form, then add the walls and the second roof. In this manner you may construct as many stories as you please, one above another, till the whole pack is built up. ─ American Girl's Book (1854)