A planet opens each row of a spread and sets its own terms — how many house cards fall under it, and how long the reading remains true.
A house card names a domain — family, work, loss. It does not say in what spirit that domain is being touched. The planet does. Venus over the 7th house and Saturn over the 7th house are the same domain and opposite readings: one is a marriage of comfort, the other a marriage that waits.
Three things come from the planet and nothing else: who is driving the matter, how many house cards fall beneath it, and how long the answer stays valid. The very first planet drawn — the one that opens the Past row — sets the clock for the whole reading.
Tap any card to open its portfolio.
Whichever graha opens the Past row decides how far back the matter runs — and how long the prediction holds before it must be asked again.
Two grahas in the same spread say something neither says alone. Pick any two and the pair resolves.