Study Guide Chagigah 9 Today’s daf is sponsored by Anne Mirsky in loving memory of her mother, Rhoda Polachek z"l. “She supported Jewish education and many organizations in Israel and the United States.” Today’s daf is sponsored by Bracha Stuart in loving memory of her dear brother, Aryeh Leib ben Simcha HaKohen (shlita) on his first yahrzeit which will be on  Shabbat. May his neshama have an Aliya and his memory be for a blessing. How does a make-up for a Chagigah sacrifice work? From where do we know that the Sukkot one can be made up even on Shmini Atzeret. The Gemara grapples with Rabbi Yochanan's approach to understanding the makeup of the Chagigah sacrifice based on other sugyot including a nazir and a zav. There are certain things that can't be rectified, such as, making up a Chagigah sacrifice once the holiday has ended. This is connected to a verse from Kohelet 1:15 that discussed things that can't be fixed and mixed opportunities. Other tanaim bring other examples that can be learned from this verse.