How are the High Holy Days of Rosh Hashanah and Yom Kippur similar?

Rosh Hashanah and Yom Kippur are both High Holy Days observed with prayer and reflection, and acts of charity are part of the season. Gifts and games are not central to either holiday, and lighting candles for eight days describes Hanukkah. Ceremonies marking adulthood are not a feature shared by both days.

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