the higada is the book that gives the instructions for the sadir. it includes passages from the bible. it includes instructions on ritual. it includes songs. many times it includes illustrations. >> so i think we have a couple of pictures to show folks about examples that are in the exhibit. what is this? >> this is a page that illustrates the four questions. and one very critical part of the sadir tradition is dialogue and the asking of questions and the retelling of the story through conversation. so this page shows the passing on of the story from one generation to the next. >> wonderful. i think we have one other image to show. >> it's an illustration of the four sons who are used as sort of the archetypes of people who need to learn the story. it's supposed to represent all of mankind and these different types it. so what is really important about this page is that we have the wicked son is illustrated similarly to a german aristocrat referencing naziism. you can see that he has a mustache that's similar to hitler's mustache. so this is one of