ש (Shin) is the twenty-first letter of the Hebrew alphabet, with a numeric value of 300. Its name means “tooth” or “sharp,” and its three-pronged glyph resembles a tooth, a flame, or the threefold nature of fire. In the Sefer Yetzirah, Shin is one of the three mother letters (אמש), representing the element of Fire—the active, transformative, and illuminating force that mediates between the other two mothers, Aleph (Air) and Mem (Water).

Position on the Tree of Life

On the Kabbalistic Tree of Life, Shin corresponds to Path 31, which connects Hod (Splendor, sphere of Mercury) to Malkuth (Kingdom, the material world). This path is the bridge between intellectual refinement and physical manifestation, and its fiery nature symbolizes the spiritual energy that descends into matter. In the 777 system, the letter appears at step 31 and also at step 31 bis, reflecting its dual role as both a standard path and an intensified or secondary attribution.

Astrological and planetary correspondence

Shin is traditionally assigned to the element of Fire, and in many systems it is also linked to the Sun—the celestial body that embodies fire, light, and life-giving power. The Sun’s influence through Shin imparts vitality, will, and the capacity for spiritual illumination. In the Golden Dawn tradition, Shin is the letter of the Sun in the zodiacal context, though its elemental nature remains primary.

Historical context

The letter Shin appears in the earliest Hebrew inscriptions and has been central to Jewish mysticism for millennia. In the Sefer Yetzra (c. 2nd–6th centuries CE), Shin is described as the mother letter that “sealed” the element of Fire in the universe, the hot season in the year, and the right side of the body (the active, masculine principle). The three strokes of Shin are often interpreted as the three Patriarchs (Abraham, Isaac, Jacob) or the three aspects of the divine—Chesed, Gevurah, and Tiferet—united in a single flame.

In Kabbalistic meditation, Shin is the letter of the divine name Shaddai (שדי), which is inscribed on the tefillin and on the mezuzah. The shape of Shin with its three heads is also seen as a symbol of the three upper Sefirot (Keter, Chokmah, Binah) or the threefold flame of the soul. In alchemical and Hermetic traditions, Shin corresponds to the element of Fire and the transformative power of the philosopher’s stone. The letter appears in the center of the pentagram in many ceremonial magic diagrams, representing the spirit or the divine fire that balances the four elements.

In Liber 777, the Hebrew letter Shin is listed at step 31 (and at step 31 bis) in the Hebrew Letters column of row CLXXV. Its presence at this step underscores its role as a fiery, solar, and transformative symbol—the letter that carries the spark of creation into the lowest world.