The birth chart (D1) shows lived terrain, but the classics insist that promises must be tested in the vargas. D9 interrogates alignment and long-term durability, while D10 refines vocational pathways and authority. The method is simple to state and exacting to execute: assess strength, dignity, and yogas in the main chart, then confirm or qualify them in the relevant vargas before timing with transits and planetary periods.
This multi-lens approach is not a flourish; it is the backbone of validity in Jyotish practice. Authorities on both Parāśari and Jaimini streams preserve detailed rules for varga evaluation and promise testing, reminding us that single-chart certitude is an illusion.
Used properly, vargas do not mystify a reading. They remove guesswork, translating symbolism into a plan.