Suddha Dharma Mandalam (SDM) is name of an ancient Hierarchy which watches over the evolutionary progress of the Humanity. In the whole Universe the Bhagavad Gita—the Yogic art of Brahman—occupies the most exalted position. The aim of this study is to explain the composition and the mystic-philosophical principles that sustain SDM Bhagavad Gita of 745 slokas and 26 chapters. Suddha Gita contains 745 verses in 26 chapters conformed by the dual extreme “The Pranava” (first and last chapters) and the central (...) body “The Gayatri” of 24 chapters (4 feet). The first (Proem) and last one (Epilogue) represent Vyasthi- and Samasthi-para aspects of The Pranava; these aspects correspond to the Brahman conception of One and Many, respectively. While 4 feet or headings (Gñana-knowledge, Bhakti-desire, Karma-action and Yoga-synthesis) correspond to 4 aspects of eternal Dharma and the 4 keys for life learning (quadruple life-path), the 24 chapters represent the 24 material tatwas. By the other hand, the greatest symbols known are The Pranava or the syllable Om and The Gayatri consisting of 24 syllables. The syllable of Pranava contains 2 expressions: 1) the analytical three-letters AUM which normally appear at the beginning of important mantras, where the first letter represents Atma or the Self-aspect of Brahman; U the Prakriti or the Not-self aspect; M the Shakti or the Force-aspect; 2) the synthetical two-letters OM which normally appear at the end of important mantras, where O (pronounced at center of the palate) integrates the 2 extreme vowels and M similar like before. The AUM at the beginning signifies that Brahman is the source from which the factors manifest themselves, and Om at the end signifies that these factors merge and become synthesized in that very Brahman. No reference has been made to the reason for the introduction by the author of the first and the twenty-sixth chapters and his linking them with the body of the twenty-four chapters compacted together under the four groups. The whole of the current recension is divided into 18 chapters and empirically divided into three shatkas—Kriya, Bhakti and Gñana shatkas, which are based on “tripada gayatri”, although Gayatri to be complete has to be “chatuspada-shadangula” representing the well-known 24 principles, six in each pada. The absence, thus, of a fourth pada as such is a serious unfortunately omission. Today Suddha Gita is valid and it is being read by many people around world, since SDM Order as an outer organization has several schools distributed in American and European countries. (shrink)