Chapter six refers to polemics and conversion. It deals with the dream of the Khazar king as related by Judah Halevi (12th century), the book Silencing the Jew by Samau’al al-Maghribi (12th century), the public letter of Joshua ha-Lorki (14th century), and the Hebrew letter of Hasdai Crescas to the Jewish community of Avignon. Which texts aimed to comfort a depressed community?