Maamar Shnei Hameoros / מאמר שני המאורות

A lengthy Chasidic exposition on the Talmudic statement that at Creation, the sun and moon were of equal size, but subsequently the moon was diminished due to its complaint. In his unique style, with copious parables, the author, R. Yitzchak Isaac Halevi Epstein of Homel—one of the early disciples of R. Schneur Zalman of Liadi—explains numerous topics in Chasidic philosophy throughout the three sections of this work.

First published in Poltava in 1918, it was reproduced in New York in 1972, at the request of the Lubavitcher Rebbe. The present edition has been split into paragraphs and reset in clear font, with annotations.