Yesterday is History — Yesterday's Newspaper

Dickinson compared the condition of newspapers in the house with her life. The hint is Flutter at the end.

Yesterday is History, ¹
'Tis so far away－
Yesterday is Poetry－
'Tis Philosophy－

Yesterday is mystery－⁵
Where it is Today
While we shrewdly speculate
Flutter both away

(F.1290/J.1292)

[1] Yesterday:: yesterday's newspaper.
[2] far away:: it has disappeared; hinted in line eight.
[3] Poetry:: something poetic, less urgent.
[1,3] History, Poetry:: content of the newspaper.
[4] Philosophy:: the nature of yesterday's newspaper, history, far away, and poetry.
[5] mystery:: disappeared without any trace.
[6] Today:: today's newspaper.
[7] shrewdly speculate:: who would take away these newspapers.
[8] Flutter both:: newspapers disappeared in the house as if they have wings.