Siddhānta — the theory
T he birth chart — the rāśi chart — shows the whole life at a glance. But Jyotiṣa does not stop at the whole. Each 30° sign can be cut into finer parts, and where a planet falls within its sign lifts it into a separate chart — a varga. Parāśara names sixteen in all, the ṣoḍaśavarga, and each one is a magnifying glass held over a single department of the life.
The mechanic is always the same. Take the sign's thirty degrees and divide by N. The planet's degree decides which of the N parts it occupies; a rule maps that part to a sign; and that sign becomes the planet's seat in the divisional chart — which is then read like a small kuṇḍalī of its own. D9, the navāṃśa, is the marriage-and-fruit chart; D10 the career; D60, sixty parts to a sign, the finest grain of all.
Each varga answers one question. Want the marriage and the ripened fruit of every planet? Read the navāṃśa (D9). The career and worldly action? The daśāṃśa (D10). Wealth, the horā (D2); siblings, the drekkāṇa (D3); parents, the dvādaśāṃśa (D12). A planet mighty in the rāśi chart but fallen in the D10 promises a career that never quite delivers; the promise is the D1, the delivery is the varga.
Two rules govern the reading. The finer the division, the more exact the birth time it demands — a D60 shifts sign every thirty seconds of arc. And when a planet keeps the same sign in the rāśi and the navāṃśa — vargottama — it holds its strength across the magnification, doubly sure. The West's nearest cousin is the harmonic chart — the ninth harmonic mirrors the navāṃśa — but it has nothing like the sixteen-fold system.
To divide is to look closer, and the closer you look the less you see of events and the more you see of the soul. The coarse charts speak of the body and its fortunes; the fine ones — the D20 of worship, the D60 of past-life residue — speak of what the life is for. The vargas teach that a person is not one thing but a depth: examine any life at fine enough grain and you reach, not more facts, but the karmic signature beneath them.
“The whole chart is the promise; each division is where it comes true, or does not.”
Casting the division is only the mechanic. The old reading of the ṣaḍvarga gives each of the six a single, distinctive thing to say — and a promise the birth-chart makes is kept only where these confirm it.
Every planet falls in the Sun's half of a sign or the Moon's. The solar group — Sun, Mars, Jupiter, Saturn — gaining in the Sun's horā tilts the purse toward drive and enterprise; the lunar group — Moon, Mercury, Venus — gaining in the Moon's horā tilts it toward ease and relationship.
The thirty-six decanates each carry a story. Read on the stronger light, a decanate of flower and fruit gives comfort and plenty; one of food, nourishment even in a bare place; one of flame, courage and contest; one of deep water, feeling and hidden currents.
A planet holding the same sign in rāśi and navāṃśa is vargottama — doubly fixed in its nature, keeping what it promises. The ninth-chart is where every placement of the first is either confirmed or quietly undone.
Varāhamihira's rule: from the strongest of lagna, Sun or Moon, take the tenth, find its navāṃśa, and read that navāṃśa-lord's trade — the Sun's gold and medicine, the Moon's land and water, Mars's metal and daring, Mercury's letters, Jupiter's law and treasury, Venus's gems and arts, Saturn's hard labour. One thread among many.
The twelfth-part of the rising lays a second sign's cast over the visible form — its features show quietly in the body — and carries the parents and the lineage down which they were inherited.
Falling in none of the malefics' or benefics' equal parts by chance, the lagna's thirtieth lands in a part ruled by Mars, Saturn, Jupiter, Mercury or Venus — and takes that lord's cast of character, its gifts and its troubles.
These are leanings the divisions incline toward, never a single-factor verdict — the old texts warn against deciding a life from any one part alone.
One sky, sixteen magnifications. The rāśi chart draws the outline of a life; the vargas fill in each region at higher and higher resolution, until at the finest grain the picture is no longer of the person's fortunes but of the soul that carries them. To divide the sky is to ask the same question of a life, again and again, more closely each time.
Abhyāsa — the divider
Place a planet — choose its sign, then slide it to a degree. Pick a varga, and watch the thirty-degree arc split into its parts: the segment your planet sits in tells you which sign it takes in that divisional chart. Change the division, and it moves — and beside the result, read the फल: what that very part says in the old ṣaḍvarga doctrine.
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Prayoga — which chart do you open?
A seeker comes with a question. Before you read a single planet, you must know which divisional chart holds the answer. Read each, and choose the varga you would open.
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Take one planet from your own chart. In the divider above, hold its sign and degree fixed and step through the vargas — D9, D10, D12, D60 — writing down which sign it takes in each. Where does it strengthen, where does it fall? Is it ever vargottama? One planet is a different actor in every department of the life.
Siddhi — divide it unaided.
A planet at a degree in a sign, and a division named. Cut the thirty degrees, find the part, and name the sign it takes in that varga.
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Run another round ↻