Shemini Atzeret is a Jewish holiday that occurs immediately after the week-long festival of Sukkot. It is observed on the 22nd day of the Hebrew month of Tishrei and serves as a concluding celebration, emphasizing the connection between the harvest festival and the upcoming winter months. On this day, special prayers are recited, including the Yizkor memorial service for deceased loved ones. It is also customary to pray for rain, as it marks the beginning of the rainy season in Israel. The holiday is often seen as a time for reflection and gratitude for the blessings of the past year.