Idra Rabba contains the discussion of nine of Rashbi's friends, who gathered together to discuss great and deep secrets of Kabbalah. The nine are: Rabbi Elazar his son, Rabbi Abba, Rabbi Yehuda, Rabbi Yossi bar Yaakov, Rabbi Yitzchak, Rabbi Chezkiyah bar Rav, Rabbi Chiyya, Rabbi Yossi and Rabbi Yisa. After the opening of the discussion by Rashbi, the sages rise, one after the other, and lecture on the secret of Divinity, while Rashbi adds to and responds to their words. The lectures in this section mainly explain the words of the "Sifra diTzni'uta", in a similar manner as the Gemara explains the Mishnah.