In the 1970s, a Chabad journal in Israel published a story about the Alter Rebbe reversing a halachic ruling based on a dream, sparking significant controversy. This incident opens the door to a fascinating exploration of a practice that was surprisingly common among Ashkenazic rabbis in the 12th and 13th centuries—using dreams to guide halachic decisions.

Dreams of Revision: The Role of Dreams in Altering Halachic Rulings