The Shabbat between Rosh Hashanah and Yom Kippur is called Shabbat Shuvah, “Shabbat of Return.” The name derives from the Haftarah (reading from the prophets) for this Shabbat, which opens with the words (Hosea 14:2), “Return O Israel unto the L-rd your G-d...” Occurring in the “Ten Days of Repentance” (see “Laws & Customs” for Tishrei 3), it is a most auspicious time to rectify the failings and missed opportunities of the past and positively influence the coming year.
The master Kabbalist Rabbi Isaac Luria (“Ari”) taught that the seven days between Rosh Hashanah and Yom Kippur (which will always include one Sunday, one Monday, etc.) correspond to the seven days of the week. The Sunday between Rosh Hashanah and Yom Kippur includes within itself all Sundays of the year; the Monday embodies all Mondays, and so on. Shabbat Shuvah is thus the archetypal Shabbat -- the juncture in time at which we are empowered to influence every Shabbat of our year.
