Much Madness is divinest Sense

While first reading Emily Dickinson's,"Much Madness is divinest Sense" I had absolutely no idea what was going on. When I went back through and tried to analyze it, I realized that she is saying madness is actually sanity. It's kind of crazy to think about, but at the same time kind of makes sense. She is saying that those that many who are deemed insane, are actually fully sane people who simply go against popular thought. It seems as if she is saying those who disagree with the majority are not insane. She is saying they simply have different opinions. She seems to want to stop the opinion that those who go against what most think are insane. She wants more diverse thought. I believe she wants people to think more freely without having to worry on the repercussions. Dickinson writes "And handled with a chain..." (7). This says that those who are deemed insane are forced to stay way from others. They are punished for their ideas.  I wonder if the story relates to Dickinson. Overall I thought this was a thought provoking poem that brought up good points.