Watch the slow planets move, measured from the Moon and Lagna.
Your birth chart is the sky frozen at the moment you were born. But even at this very moment, the planets keep moving. Vedic astrology calls the 'sky right now' passing over your birth chart Gochara, or Transit.
What's especially worth watching in Gochara are the slow-moving planets — Saturn (about two and a half years per Rashi), Jupiter (about a year), and Rahu and Ketu (about a year and a half). Fast movers like the Moon, Mercury, and Venus pass through in days to weeks, so their influence is brief; the slower a planet is, the more it shapes a big phase of life.
The reference point matters. Classical Gochara uses the Moon Rashi (Chandra Lagna) as its primary reference. It asks Saturn's current distance — how many houses away from my Moon. Adding the Lagna reference makes the picture fuller. (Glowy shows you both references together.)
And one thing to remember — Sadesati is just one part of Gochara. It's the name given to the stretch where Saturn passes through three slots centered on the Moon. It refers to one specific stretch within the whole Saturn transit; Vedic astrology isn't the same thing as Sadesati. We'll look at Sadesati in detail in the next chapter.
Lastly, you need to look at Dasha and Gochara together. If Dasha tells you "what theme's season it is right now", Gochara tells you "what wind is blowing through that season right now". When the two touch the same area at the same time, we see it as more likely to show up as an actual event.
This content is for reference and entertainment, based on traditional Chinese metaphysics and astrology.