
Two charts, both with Mars in the 10th, both with the same aspects. One person is decisive at work; the other pushes and pushes and nothing moves. Aspects do not explain it. What explains it is dignity: the oldest scoring system in astrology, which asks not what a planet is doing but how well it is equipped to do it.

The idea in one sentence
A planet in a sign it rules is at home and has its full toolkit. A planet in the opposite sign is working in a borrowed language. Everything else is degrees in between.
The ladder
- Domicile (rulership). The planet is in its own sign — Mars in Aries, Venus in Taurus. It behaves like itself with no translation and no apology. Strong does not mean pleasant: Saturn in Capricorn is Saturn at full strength, and full-strength Saturn is not comfortable.
- Exaltation. An honoured guest — Sun in Aries, Jupiter in Cancer. Effective, sometimes overdone, because a guest treated as royalty rarely knows when to stop.
- Detriment. Opposite its own sign — Mars in Libra, Moon in Capricorn. The function still runs but through unfamiliar machinery. Mars in Libra still wants; it just cannot pursue directly, so it persuades.
- Fall. Opposite its exaltation — Sun in Libra, Saturn in Aries. The function is on the back foot and tends to overcorrect.
- Peregrine. None of the above: no dignity, no debility. The planet is competent and unremarkable, which describes most planets in most charts and is worth saying out loud.
Why this is not a scoring game
The temptation with dignity is to add up points and declare a chart strong or weak. Resist it, for a reason that is practical rather than diplomatic: debility is where the interesting behaviour lives. A planet in detriment has to invent a workaround, and the workaround is usually the person’s most distinctive skill.
Mars in Cancer — in fall — cannot charge. So it learns to wait, to move sideways, to act through other people. Read as a score, that is a weak Mars. Read as behaviour, it is a strategist. Both are true; only one is useful in a reading.
Worked example: two Venuses
Venus in Taurus, domicile, 2nd house. Venus in Virgo, fall, 2nd house. Same house, same planet.
The Taurus Venus knows what it likes, buys it once, keeps it for twenty years, and has no anxiety about the transaction. Comfort is not a guilty pleasure; it is a settled value.
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