I agree that her poetry was irregular and very different, which was the way she felt she had to write her poetry. Emily Dickinson believed that poetry is one of the most powerful mediums through which humans, given the availability, used to express themselves. She felt that bringing out her inner life was what poetry called her to do, and so she did it.
I hoped this helped a bit. I am not amazing at answering too much, but I believe this is sort of what you asked for.