One of the most notable "peculiarities" of the work of Dickinson is the way in which she uses slant rhyme consistently to indicate a sense of incompleteness or of dissonance in her works that is indicative of a deeper sense of unrest or conflict. Let us remember that slant rhyme is a form of rhyme that is imprecise. It is often called half rhyme to point towards the way in which two words are set against each other, and when we would normally expect them to rhyme, they only kind of rhyme, or half rhyme, pointing to a sense of incompleteness and can often be unsettling for the reader.
For an example of this in action, consider her brilliant poem, "I heard a Fly buzz--when I died--". This poem is about the difference between the expectations of the mourners as they eagerly await for some kind of divine visitation as they watch the speaker die, and the mundane commonplace reality of a fly appearing instead. It is therefore entirely appropriate that half rhyme should be used, in rhyming "Room" with "Storm" for example, and then "firm" and "Room," to indicate a sense of unease or disquiet. The complete rhyme in the final stanza points towards the poem's resolution, as the speaker dies and is left with seeing the sight of the fly, reminding both her and us of the ultimate reality of death.