She walks into the meeting and talks loudly. Laughs loudly, tells you about her trip, demands attention without asking. And you spend the whole afternoon irritated by it, well beyond what the situation calls for. That evening you still mention it to someone: “how can a person take up so much space?”

Notice the imbalance. A loud colleague is a ten-minute annoyance. When she costs you an afternoon of bad mood, a rant, and a conversation over dinner, the irritation is working for something else. The intensity of the reaction is the clue, and almost nobody looks at it. We look at the colleague instead.

Often what irritates you so much is exactly what you learned not to do. Taking up space, demanding attention, laughing without measuring the volume. At some point that became forbidden for you, and whoever does it without guilt in front of you pokes at exactly that spot.

It works the other way round too. Some people lose patience with the shy colleague, the one who never takes a stand and apologises for everything. For that person, it is fragility that got left outside the door. Each of us gets irritated by the part of ourselves we had to hide, and the list is deeply personal. Carl Jung had a name for that hidden part: shadow.

For Jung, the shadow is everything a person does not recognise as her own. It starts early. A child discovers that anger pushes her mother away, that crying irritates her father, that vanity at school turns into a nickname. She learns to put those parts away in order to go on being loved, and it works: it was what she could do at that age.

What was put away stays alive. It just loses its address. And the psyche has a curious way of giving back what was set aside: it sees it in others. Jung called this projection, and it explains why certain people set us off with so little. We react to them with the force of someone fighting with herself.

One detail changes everything. The shadow also holds good qualities. Jung wrote that it keeps creative impulses, fitting reactions and healthy instincts that upbringing cut away along with the rest. The woman who gets irritated with her loud colleague may have lost, along with the space she used to take up, the ability to ask for what she wants.

That is why the shadow is worth looking at: it tends to be holding strength. And this is where the chart comes in. It shows where these parts tend to sit, which area of life they belong to, and what kind of defence surrounds them.

Pluto is the piece of the chart that speaks most directly to the shadow. It describes power, control and what a person does so as not to lose. Almost nobody recognises herself in the word control, and almost everybody recognises herself in the scene.

Pluto in house 7, for instance, tends to show up in people who choose strong partners and then feel swallowed by them. The power a person does not claim in herself she finds across the table, and spends years fighting it. Pluto in house 2 can be strict control over money, lived as prudence, by someone who dreads depending on anyone.

House 8 is the neighbouring territory: intimacy, shared money, inheritance, loss, and whatever only shows itself once the door is closed. It is the house of things we exchange with another person and cannot control alone. That is why it holds old fears: of being invaded, of being abandoned, of depending on someone. People with planets there tend to live these matters intensely and hide them with the same intensity.

Read together, these two points answer a concrete question: faced with a crisis, a loss, or a change you did not choose, what do you do first? Some people tighten control. Some disappear. Some go suddenly cold. Each of these exits protected someone once, and today it may just get in the way.

If house 8 is what gets hidden between two people, 12th house is what gets hidden even from yourself. It is the house of automatic gestures, of what happens before you think, of the pattern you only notice once someone points it out. A planet in house 12 tends to be one a person uses without knowing she is using it.

Mars in house 12 is the classic example. The person describes herself as calm, never fights, and lives surrounded by aggressive people. The anger is there; it just comes out sideways, in lateness, in the sharp joke, in convenient forgetting. When the person recognises that anger as her own, something settles in her relationships.

Saturn enters through fear. It shows where you felt not good enough early on and built a serious defence around it: strictness, rigidity, refusing to ask for help. It is the area where everything costs double, and where effort, over time, builds a solidity nobody handed you for free.

Chiron closes the trio. It is the wound that never fully closes and that, precisely because of that, teaches. Many people with Chiron in house 3 suffered from not being heard as children and became the person who listens better than anyone in the room. The wound is still there. What changes is what it goes on to do.

There is a sentence a lot of people heard growing up, in some version or other: you are too much. Too intense, too fierce, too sensitive, too independent. Lilith tends to point to that part.

In the calculation, Lilith is a point on the Moon's orbit. In the reading, she speaks of the part of you that will not bend: the authenticity that was rejected, sometimes out of sheer survival, and that comes back at the moments you least expect. Lilith in Scorpio, for instance, tends not to manage pretending everything is fine; the person tries, and the whole body gives it away. The page about Lilith in Scorpio shows this in detail.

By house, Lilith shows which subject the refusal shows up in. Lilith in the 7th house tends to refuse the role marriage seems to ask for, and often the person feels guilty about it before she feels free. In house 10, the refusal is with authority, with the boss, with the career someone else planned.

Working with Lilith is almost never about taming her. It is about finding a place where that “too much” has a use. The intensity that scared the family can be exactly what makes someone good in an emergency shift, in a newsroom on deadline, in caregiving, or in creative work.

Aspects show where two parts of you do not get along. In a square, two planets sit ninety degrees apart and rub against each other from the inside: the wish to stay fights the wish to leave, the wish to please fights the wish to be in charge. Anyone with Venus square Mars knows well the scene of wanting affection and starting an argument instead.

The opposition is the aspect most tied to projection. The two planets sit on opposite sides of the sky, and the tendency is to live one side and hand the other over to someone else. A person with the Sun opposite Saturn can spend years surrounded by rigid bosses, demanding parents and stern partners, without noticing that the sternness also lives in her, and that it is with herself she is hardest.

And there is the shadow by absence, which almost nobody talks about. It is the missing element in the chart, the planet with no aspects at all, the function that exists on paper and never quite happens. People with little fire tend to get irritated precisely by impulsive people, and tend to need them. It is the face the text about the four faces of your chart calls deficiency: the piece is there, and the person has no access to it.

That is why no shadow is read from a single position. Pluto on his own says little. Pluto in house 8, square the Moon, in a chart with no water, tells a whole story, and that story is what matters.

This reading does not diagnose. Anxiety, depression, trauma and compulsion call for a professional's assessment, and no symbol replaces therapy. A reading can name a pattern; the suffering it causes is another profession's business.

It also does not make a list of flaws. Shadow, in Jung's sense, is what was left out of the light, and that includes talent, desire and strength. A text that hands you back a collection of failings has missed the whole concept. And there is no cursed position: Pluto, house 8, house 12 and Lilith describe processes, and none of them announce punishment or tragedy.

It does not predict. Nothing here says what will happen to you, and no chart condemns anyone to repeat what she repeats. And it is not a weapon. Telling someone else “that's your shadow talking” in the middle of an argument is using the language of self-knowledge to win a fight, the very opposite of what it is for. The shadow worth reading is your own.

What is left is plenty: where your fears live, what defences you built, what strength stayed hidden along with them, and how to start recognising all of it before the reaction takes over.

Get some paper and write down the names of three people who irritate you more than they should. They can be people close to you, or someone you barely know. Next to each name, write three adjectives for what bothers you about them. No filter, and no trying to be fair.

Now read the list looking for what repeats. Almost always one adjective comes back wearing different clothes: loud, showy, presumptuous. Ask yourself what would happen if you did a little of that yourself. If the answer comes with a knot in your stomach, you have found a piece of your shadow.

If no adjective repeats, try the test the other way round: think of someone you admire with a hint of envy. That is usually where what some Jungians call the golden shadow shows up, the talent you see in someone else and assume will never be yours. Often it is the same talent that got put away along with the anger. And if the same type of person keeps showing up in every job and every relationship, it is worth reading about the patterns that keep repeating, which is the closest relative to this conversation.

The exercise is a home-made version of what Jung proposed, and he himself took astrology seriously as a language of the psyche. In 1911 he wrote to Freud telling him he spent his nights calculating horoscopes, and years later he used couples' charts in a study on marriage. In the 1970s, astrologers like Liz Greene brought the two traditions together for good, and her book on Saturn treated the most feared planet in the chart as a teacher of maturity.

Keep the list. Once you have your chart in hand, compare the adjectives with house 8, house 12, Lilith and the oppositions, and see what speaks to what.

And the questions that come up most on this subject, with the short answer: