jyotisha and the sky
What are divisional charts (Vargas) in Jyotisha and what do they reveal?
The basic idea
In Jyotisha, the main birth chart, called the Rashi chart or D-1, maps the sky at the moment of birth. But each of the twelve signs can be divided into smaller equal parts. Each division creates a new chart, a Varga. A planet that sits in one sign in the main chart will fall into different signs across these divisional charts. Together they build a layered picture of a person's life. The tradition holds that the main chart shows the broad shape of life, while the Vargas reveal the finer details hiding beneath.
Where it comes from
The system of Vargas is detailed in the Brihat Parashara Hora Shastra, one of the foundational texts of Jyotisha. It describes sixteen main divisional charts, a group known as the Shodashavarga. Each chart has its own name, its own method of division, and its own area of life to examine.
What each chart looks at
Different Vargas are used for different questions. The D-2, called the Hora, is linked to wealth. The D-3, the Drekkana, relates to siblings. The D-10, the Dashamsha, is read for career and public life. The D-12, the Dvadashamsha, is used to look at parents. The most widely used of all is the D-9, the Navamsha. It is tied to marriage, dharma, and the deeper purpose behind a person's life. Many practitioners say the Navamsha shows what a person is moving toward, while the Rashi chart shows where they start. When a planet is strong in both the main chart and the Navamsha, the tradition considers that a good sign for the matters that planet governs.
How practitioners use them today
Most Jyotisha readings today begin with the Rashi chart and then bring in the Navamsha as a matter of course. Other Vargas are added depending on what the person is asking about. Someone asking about work might have the Dashamsha examined closely. Someone asking about family might have the Dvadashamsha looked at. The charts are read together, not in isolation. Software now generates all sixteen charts instantly, which has made it easier for practitioners and students to work with the full set. The tradition of reading multiple charts for one person is one of the things that sets Jyotisha apart from many other astrological systems.