Editing Maamar (section)

==== Discourses for Purifying the World's Atmosphere ====
Each of our Rebbes had a fixed discourse that they would repeat from time to time in order to purify the world's atmosphere, which they would repeat in public once every two or three years. One of the Alter Rebbe's discourses is the discourse beginning with "Heichaltzu" that was printed in Likkutei Torah without the annotations. One of the Mitteler Rebbe's discourses is the discourse beginning with "Yafah Sha'ah Achat," and its content is the first ten chapters of the discourse "Hinei Kol Echad V'Echad Omer Elokai Neshamah" in his book "Derech HaChaim." One of the Tzemach Tzedek's discourses is the discourse beginning with "Mah Tovu" that is brought in Likkutei Torah. One of the Rebbe Maharash's discourses is the discourse beginning with "Mi Kamocha Ba'eilim." One of the Rebbe Rashab's discourses is the discourse beginning with "V'Yadata HaYom." One of the Rebbe Rayatz's discourses is "Ein HaKadosh Baruch Hu Ba B'trunia" from ה'תרפ"ה (1925).