You entered the date, the time and the city, pressed the button and the chart appeared. A wheel split into twelve slices, a handful of glyphs scattered around the edge, red and blue lines crossing the middle like threads of a web. You looked at it for a couple of minutes, found the symbol of your sign, thought «now what?» and closed the tab.

It happens to almost everyone, and it makes sense. A birth chart shows everything at once, and anyone who's never read one doesn't know where to look first. It's like opening a musical score without knowing how to read music: it's all there, and none of it sounds.

The good news is nobody reads a chart all at once, not even someone who's been doing this for thirty years. It's read in layers, one at a time, and each layer already makes sense on its own. What follows is that path, step by step, from the simplest to the whole chart, so you know what to look for in each one.

If you haven't generated yours yet, it's worth reading first what the birth chartactually is: the photograph of the sky at the instant and place you were born. Everything that appears on the wheel is that, set out in a drawing.

When someone asks «so what's your sign?», they're asking about the Sun. It's the centre of the wheel and the centre of you: what you're learning to be, the direction you choose to grow in. That's why it's the first point everyone knows, and why the newspaper horoscope is built on it alone.

The Moon is what you need to feel safe. It's the part that reacts before thinking, that knows what soothes and what unsettles, and many people recognise themselves in it more than in the Sun. The Ascendant is the entrance door: the way you arrive somewhere, the first impression, what others see before they get to know you. In Jung's language it's the persona, the social outfit that helps you move through the world and sometimes hides who's underneath.

The three together explain a sentence I hear every week: «I don't identify with my sign». Of course not, the sign is one third of the first step. The difference between the three points is laid out calmly in sign, Moon and Ascendant.

This step has two more pieces, and they tend to surprise. The element that predominates in the chart, fire, earth, air or water, shows the temperament of the whole, and what's missing shows the part of you asking for development. The modality tells the rhythm: whether you're built to start, to sustain or to adapt. Someone with the Sun in Leo and almost no fire elsewhere in the chart is a very different Leo from the one the horoscope describes.

After the three pillars, the chart opens up its cast. Each planet is a part of your psyche, with a will of its own. Mercury is who thinks and speaks. Venus is who loves and chooses what she finds beautiful. Mars is who desires, fights and defends what's hers.

Jupiter and Saturn come next, forming a pair everyone knows from the inside. Jupiter is the part that trusts, that expands, that believes things will work out. Saturn is the inner judge, the limit, the voice that asks «and what if it doesn't?». Most people live in a constant negotiation between the two, and seeing where each sits in the chart helps explain why you push yourself so hard in one area of life and let yourself off entirely in another.

Uranus, Neptune and Pluto close the cast. They spend years in the same sign, which is why their sign is shared with your whole generation. What's yours alone, in them, is the house they fell into: the part of your life where you break from what's expected, where you dream and where you transform.

The joy of this step is watching the list of positions turn into a conversation between characters. Every planet has light and shadow: what it offers when you live it with awareness, and what it does when it's denied or projected onto others. Someone who discovers their own Mars in Cancer suddenly understands why they fight tooth and nail for the people they love and freeze up when they need to fight for themselves.

Knowing who lives inside you is half the story. The other half is where each one shows up. The twelve houses divide life into areas: money, family, love, work, friends, what stays hidden. Each planet falls into one of them, and that changes a great deal.

Think of two people with Venus in Taurus. In one, it sits in house 2, the one for money and possessions; in the other, in house 10, the one for career. The first might love what is hers and enjoy taking care of it, from the plant on the windowsill to the old car she will not sell. The second might carry that love of beauty into her profession, and only feel right in work that has shape and finish.

This step also brings in the ruler of each house. Every house starts in a sign, and that sign has a planet in charge of it. If the house of work starts in Gemini, Mercury answers for it, and wherever your Mercury sits, part of your work lives there too. This is how the areas of life connect to one another, and that is why a house with no planet inside it still says a great deal.

There is a practical detail here: the houses depend on your time of birth. Without the time, there are no houses, and the Ascendant disappears too. If you do not know yours, it is worth looking at your birth certificate or asking your family before you climb this step.

The last step is the one that gives meaning to the coloured lines in the middle of the wheel. They are the aspects, the distances between the planets, and they show how the parts of you relate to one another. Some support each other, some clash, some work together without you noticing.

The conjunction joins two parts so closely that it becomes hard to tell one from the other. The opposition shows two parts you tend to live one at a time, often seeing one of them in other people. The square is a friction that bothers you and, once faced, turns into strength. The trine is a talent that flows so easily you may never have chosen it on purpose. The sextile is help on offer, which only pays off once you take the first step.

Picture someone with the Sun square Saturn. She wants to be seen, and something in her asks permission first. She spends years thinking it is insecurity for no reason. When she sees the two pieces and the line between them, she understands she carries a demanding judge inside her, and that same judge is what makes her deliver work well done.

With the aspects, the chart becomes whole. This is where you can talk about inner conflict and about integration, the word Jung used for the work of bringing the parts of yourself together. The reading becomes a portrait, contradictions included, which is where a person looks most like herself.

The right step is the one that answers the question you have today. Someone just starting out, who wants to understand the basics without drowning, is usually happiest on the first one: three pillars read well, plus an analysis that brings the three together, already answers most of the questions.

Someone who already knows her own Sun, Moon and Ascendant, and wants to understand why she loves the way she loves, or fights the way she fights, is ready for the second. Someone who wants to see the areas of life, money, family, career, needs the houses. And someone who wants to understand her own contradictions, that feeling of wanting two opposite things at once, goes for the whole chart.

Each step contains the one before it, and each ends with an analysis that brings together everything read so far. The titles are the ones you already know, “Sun in Gemini”, “Venus in Leo”, and the depth lives in the text. Whoever climbs a step later loses nothing of what she already read, she only adds to it.

A suggestion from someone who does this every day: do not skip to the end out of anxiety. The whole chart at once is a lot to take in, and the first step well digested pays off more than the last one skimmed. Read it, let it settle for a few days, notice yourself acting the way the text described. When the sentences start showing up in your day, that is when it is time to move up.

No step predicts events. The birth chart describes how you work: how you think, feel, desire and defend yourself. It does not say when you will marry, whether you will get rich, or what happens next year.

It also diagnoses nothing and judges no one. A square is a tension to work with, and no placement condemns anyone to a fate. When a reading makes you feel sentenced, be wary of it. The shadow these readings speak of, in Jung's language, is the part of you that has been looked at less, and looking at it is the first step to using it in your favour.

And no step replaces what you know about yourself. The chart offers words for things you already feel; if a sentence does not fit, your own experience is worth more than the text. A good reading is one where you recognise yourself, and recognising includes disagreeing with a sentence here and there.

Lastly, without the time of birth the portrait stays half-finished. You can still read the Sun and the planets by sign, but the houses and the Ascendant depend on the time, and the whole third step is left out. Before giving up, it is worth searching the birth certificate, the maternity record, or the memory of whoever was there.

Open that wheel again and look for three things, in this order. The Sun symbol, a circle with a dot in the middle. The Moon's, the half-moon. And the horizontal line on the left side, marked AC or ASC: that is your Ascendant.

Write down the sign of each one. Then write, without overthinking it, one sentence about yourself for each: how you want to be, for the Sun; what you need to feel well, for the Moon; how people describe you in the first week of knowing you, for the Ascendant.

Compare the three sentences. If they clash with each other, you have just found the most interesting subject in your chart. Many people discover, in this five-minute exercise, that they carry three different wants, and that a good deal of life's hard decisions is the negotiation between them.

This is the point where I start every reading, and it is the first step of the staircase. The rest is climbed slowly, one step at a time, always going back to check what has shifted.

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