A Door just opened on a street — Les Miserables

A Door just opened on a street-1
I-lost-was passing by-
An instant's Width of Warmth disclosed-
And Wealth-and Company.

The Door as instant shut-And I-5
I-lost-was passing by-
Lost doubly-but by contrast-most-
Informing-misery-
(F.914/J.953)
[1–8]:: This poem is about Les Miserables by Victor Hugo.
[1–5] A Door just opened:: a description of Jean Valjean being rejected by every house at the beginning.
[7] doubly:: Bishop Myriel accepted him, but Valjean stole the bishop's silver plates, by contrast:: the bishop forgave him.
[8] Misery:: a hint on Miserables.