How does the speaker's description of the slant of light contribute to the meaning of the poem?

"There's a certain Slant of light" is one of her most well-known poems, one that provides a nearly perfect indication of what Dickinson's work was all about. She uses the imagery of winter light to create connections with the speaker's internal conflict over meaning, despair, and understanding.

to inform the reader that the text will take a second look at the grimms’ original tales