**Birkat Hachama**
**Definition**
Birkat Hachama (Hebrew: ברכת החמה) is a Jewish blessing recited once every 28 years to thank God for the renewal of the sun according to traditional Jewish cosmology.
**Overview**
Birkat Hachama, meaning „Blessing of the Sun,” is based on the belief that the sun returns to its original position at the time of creation every 28 years. This event is calculated according to the Jewish calendar and the solar cycle, occurring on a specific Wednesday at sunset. The blessing is traditionally recited outdoors, facing the sun, and includes verses praising God as the creator of the sun and the universe. The rarity of this event makes it a significant occasion in Jewish communities worldwide.
**Timing and Calculation**
The 28-year cycle is derived from the assumption that the sun completes a full rotation relative to the fixed stars every 28 years, aligning with the time of creation as described in Jewish tradition. The calculation uses the Hebrew calendar date of Nissan 14, the day of creation, and the sun’s position at the vernal equinox.
**Ritual Practice**
On the day of Birkat Hachama, participants gather outdoors at sunrise or shortly thereafter. The blessing is recited aloud, often followed by additional prayers and study related to the sun and creation. The event is marked by communal gatherings and is considered a moment of spiritual renewal.
**Significance**
Birkat Hachama symbolizes the cyclical nature of time and the ongoing relationship between humanity and the cosmos. It reflects the integration of astronomy and religious observance in Jewish tradition and serves as a reminder of divine order in the universe.
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**Meta Description:**
Birkat Hachama is a Jewish blessing recited every 28 years to mark the sun’s renewal according to traditional calculations. It is a rare and significant ritual in Jewish practice.