Macbeth Big Ideas

I think the big idea that is most important for Macbeth is the idea of fate vs choice. When the witches give Macbeth the prophecy, all of the future events in the play were then set in stone. The prophecy was the catalyst for his murder of Duncan, and their would be no way he wouldn't do it. This is why chance wouldn't crown Macbeth, the fates knew that he would be tempted to go in and seize the bull by the horns.