Mishneh Torah, Rest on the Tenth of Tishrei 2

Hook

On the holiest day of the year, the Torah asks for the soul to "afflict itself," yet our Sages define this not by vague feeling, but by the precise, intimate measure of a "cheekful."

Context

• Source: Rambam’s Mishneh Torah, Rest on the Tenth of Tishrei 2:1, reflecting his codification of Talmudic law.
• Era: 12th Century, Fustat (Cairo), Egypt.
• Community: The Sephardi/Mizrahi tradition, which deeply values the Rambam’s rationalist approach to balancing physical health with spiritual rigor.

Text Snapshot

"Similarly, one who drinks a cheekful of liquid fit to be drunk by humans is liable... What is meant by a cheekful? Enough liquid for a person to swish to one side of his mouth and for his cheek to appear full. For an ordinary person, this measure is less than a revi'it."

Minhag/Melody

In many Sephardi communities, the piyut "Ya'aleh Tachanunenu" sets the tone for Yom Kippur, reminding us that we stand before the Creator like a clay vessel in the potter's hand. This vulnerability is mirrored in the halachah: just as we are fragile as vessels, our bodies have specific limits. The minhag of the shiur (measure) reminds us that even our "affliction" is structured by halachah, ensuring that we remain within the bounds of human endurance while still performing the mitzvah of the fast.

Contrast

While Ashkenazi practice often focuses on the shiur of a revi'it (a standardized volume), the Sephardi/Mizrahi tradition emphasizes the cheekful—a subjective, body-dependent measure. This reflects a profound respect for the individual constitution: the law adapts to the person's own physical capacity, acknowledging that we are all created differently.

Home Practice

Before the fast begins, take a moment to look at a ripe date (or a similar small piece of fruit). Reflect on the fact that this small measure is the boundary between a day of spiritual elevation and a violation of the fast. Use this visual reminder to appreciate your health and the strength required to "afflict yourself" in service of the Divine.

Takeaway

The Rambam teaches us that the laws of Yom Kippur are not meant to destroy us, but to focus us. By defining the fast through the physical reality of a cheek or a mouthful, the tradition honors the body’s role in our spiritual journey, ensuring that our fast is a deliberate act of the soul, not merely a test of physical survival.