Pesach Ephraim River is addressed in correspondence from the Lubavitcher Rebbe as a shochet (ritual slaughterer) and community member seeking guidance on matters of Jewish law and spiritual practice.
The Rebbe's letter to Pesach Ephraim River responds to questions regarding religious observance and communal customs. The Rebbe expresses surprise that River did not mention the observance of Yud Shevat, the yahrzeit (hilulah) of the previous Lubavitcher Rebbe, emphasizing the importance of increasing in Torah study—particularly the study of Chassidus related to prayer and charity—on this auspicious day. The Rebbe encourages River to fulfill these customs at the next opportunity.
Addressing a halachic inquiry about the observance of the second day of Yom Tov in the Diaspora, the Rebbe instructs River to follow the guidance found in the Shulchan Aruch (Code of Jewish Law). The Rebbe clarifies that the instructions in Shaar HaKolel pertain specifically to the private observance of certain practices, rather than their public announcement.
The tone of the letter is warm and encouraging, concluding with blessings for a kosher and joyous Pesach and regards to River's friends, reflecting the Rebbe's care for both individual and communal spiritual growth.