900 is the numeration of the Arabic letter Ṭāʼ (ط), the ninth letter of the alphabet. Its value in the Abjad system is 9, but in the extended or 'greater' numeration used in certain esoteric tables—including the one in Liber 777—it is assigned the value 900. This reflects a system where the letters are given values up to 1000, with Ṭāʼ representing the final hundreds before the thousand of Ghayn.

Position on the Tree of Life

In the table of Liber 777, the numeration 900 appears in the row for the Arabic alphabet, at the scale step corresponding to Hod (8). Hod is the sphere of Splendor, associated with intellect, communication, and the analytical mind. The number 900 thus resonates with the structured, formalized aspect of language and number, the crystallization of sound into a fixed system of correspondence.

Astrological and planetary correspondence

While the number 900 itself has no direct astrological or planetary correspondence in the 777 system, its letter Ṭāʼ is traditionally linked to the zodiac sign Leo (♌), the Sun's domicile. The value 900, as the culmination of the hundreds, carries an echo of solar majesty and the fixed, regal nature of the Lion. In the context of Hod, this solar influence is tempered by Mercurial analysis, suggesting a system of divine order expressed through precise numerical and linguistic structures.

Historical context

The assignment of the value 900 to Ṭāʼ is a feature of the 'Abjad al-kabīr' or 'greater Abjad' system, an extension of the standard Abjad numerals (where Ṭāʼ = 9). This extended system, used in some Islamic esoteric and magical traditions (such as the 'ilm al-ḥurūf, the science of letters), assigns values up to 1000 to the Arabic letters, often by doubling or otherwise modifying the standard values. The number 900 is thus the penultimate step before the thousand, a number of completion and near-ultimate synthesis. In the context of Liber 777, Crowley adopted this extended numeration for the Arabic alphabet column, aligning it with the Qabalistic system of Hebrew letters and their own 'greater' values (e.g., Shin = 300, Tav = 400). The choice of 900 for Ṭāʼ in this table is therefore a deliberate syncretic move, blending Islamic letter mysticism with Western Hermetic Qabalah.

In the table of 777

In Liber 777, the Arabic numeral 900 appears in the column for the 'Numeration of Arabic Alphabet' at the row for the letter Ṭāʼ. It is the eighth step in that column, corresponding to the Sephirah Hod. This placement links the number 900 to the sphere of Splendor, the intellectual and communicative power of the divine, expressed through the fixed, solar nature of the letter Ṭāʼ.