Yoma is a term that refers to a specific type of Jewish fast day observed on the day before Yom Kippur, the Day of Atonement. This fast is traditionally dedicated to spiritual preparation, allowing individuals to reflect on their actions and seek forgiveness. During Yoma, participants abstain from food and drink from dawn until nightfall. The day is marked by special prayers and rituals, emphasizing repentance and self-improvement. It serves as a reminder of the importance of atonement and the opportunity for personal growth in the Jewish faith.