Yant Solot Mongkhon (The 16-Realm Celestial Magic Square)
The supreme numeric and cosmological yantra of Wat Saphan Sung (Luang Pu Eiam) and Wat Mai Amatarot, combining three concentric magic squares representing the 16 Form Brahma Heavens (Solasa-Brahmaloka), the 12 auspicious virtues, and the Triple Gem.
Composed of three nested square grids wrapped in three outer perimeter bands of Khom Pali script (Yant Phra Trai Pidok, Yant Chaturongkhasan, and Yant Ariyasat). The innermost 3×3 square uses numbers summing to 3/12, the middle square encodes the 12 world-cycles, and the outer 4×4 square encodes the 16 Form Brahma realms (Solot = 16).
Historically inscribed on lead/copper Takrut Solot Mongkhon scrolls by Luang Pu Eiam Pathomnam (Wat Saphan Sung, Nonthaburi, BE 2359–2439) and stamped on the reverse of Rian Solot Mongkhon coins. In Thai Buddhist cosmology, the diagram maps the 16 Rupabrahma heavens alongside the Four Noble Truths.
Syllable-by-Syllable Doctrinal Breakdown (3)
The 16 realms of the Form Brahma heavens in Theravada Abhidhamma cosmology.
The 12 links of Dependent Origination and 12 cosmological guardian virtues.
The 3×3 central square anchoring the Triple Gem.
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