When Two Energies Join Forces
In astrology, a conjunction is, by definition, a 0° aspect.
Two planets, or two points in a chart, occupy almost the same position on the astrological wheel. They may sometimes fall in different signs or houses when they are close to a boundary, although traditional purists generally require them to be in the same sign, and sometimes even in the same house.
On Astraema, you will see the conjunction represented by a green dot at the centre of the wheel, with overlapping glyphs around it when the aspect is particularly strong (within a 2° orb).
At first glance, this proximity may seem easy to understand and interpret. Two planets coming together simply means their qualities, or their flaws, add up.
Not necessarily.
Two energies meet, blend and merge. They have so little space between them that they eventually run out of room to breathe. One rubs off on the other, potentially strengthening its neighbour or working against it. In fact, the closer they are, the more they operate as a single unit, until it becomes difficult to tell them apart.
To understand this mechanism, imagine a spotlight.
The Spotlight Illuminates… but Sometimes It Blinds
In a theatre plunged into darkness, a spotlight focuses its power on a small part of the stage. It illuminates everything within its beam.
A conjunction works in much the same way. It concentrates the energies involved within a sign and a house of the chart. This concentration can be particularly significant when a luminary or a personal planet is involved.
Imagine standing beneath an extremely powerful spotlight. Everything seems illuminated, yet you may also find yourself dazzled. And because the beam is directed towards one particular place, the rest of the theatre remains in shadow. You can barely see what surrounds you.
This is the paradox of the conjunction.
It concentrates and intensifies while bringing things into the light. Yet this power can also make discernment more difficult. When two functions have operated together for a long time, their connection feels so natural that we rarely think to distinguish their individual contributions.
Take Mars conjunct the Sun. This configuration may describe someone determined, assertive, sometimes quick-tempered. Their very individuality may be strongly marked by the god of war, who can find it difficult to lay down his weapons.
But in many cases, this fusion manifests quite differently. Mars remains strong and courageous, yet its energy is less consciously accessible. The individual may struggle to assert themselves, express anger or summon courage when it is needed.
In traditional astrology, when a planet approaches the Sun, it first enters the Sun's rays. At approximately 8°30′ or less, it enters a condition known as combustion. The planet is then considered weakened, burned by the Sun, whose brilliance conceals its own light.
If the conjunction in our example occurs in Cancer, where Mars is in its fall, its strength may seem submerged. Its energy has not disappeared, but it seeks other ways to express itself. Anger may become defensive, courage may emerge through the need to protect, and self-assertion may operate through emotion rather than direct confrontation.
But not every conjunction is a combustion. An even closer proximity, within 17 arcminutes of the Sun, is known as cazimi and is interpreted very differently. The planet is then considered to be at the heart of the Sun. Far from being weakened by its light, it receives, according to tradition, exceptional power and dignity. Mars may thus recover its full capacity for action, determination and courage. Like a noble knight, it may place its sword at the service of the oppressed.
But this power does not guarantee noble intentions: a knight may also ride into battle for personal conquest. Cazimi does not change the nature of Mars. It gives Mars the means to express that nature with phenomenal force.
Proximity alone is not enough to understand how they function together. We must also consider the sign they occupy, the resources available to them and the relationships they maintain with the rest of the chart.
One Engine, Several Functions
A conjunction brings two forces together, but it does not automatically give them the same purpose or the same way of operating.
Imagine the planets as different components of an engine.
Jupiter might represent the turbocharger, Mars the fuel injection system, the Moon the emotional fuel tank, while Saturn could act as the braking system or cruise control.
Depending on the planets involved, the engine may gain power and endurance or, on the contrary, become restricted. Mars conjunct Jupiter can function like fuel injection coupled with a turbocharger: momentum increases, initiatives multiply, but the vehicle may also become difficult to control. With the Moon, the engine draws upon an emotional reservoir that can fuel action, sometimes to the point of exhaustion. Saturn, meanwhile, acting as a regulator, helps control the power but may also create the sensation of driving with the handbrake on.
A conjunction does not, therefore, tell us on its own whether the mechanism will be beneficial or restrictive.
Consider Venus conjunct Neptune in a natal chart.
Venus represents, among other things, how we love, form attachments and seek harmony and beauty. Neptune brings dreams, ideals and imagination, but also uncertainty and blurred boundaries. Their fusion can give rise to profound artistic sensitivity, inspired or universal love, and a deep search for grace and union.
Yet it can also make it difficult to distinguish between love as it is experienced and love as it is idealised, or even entirely imagined. We may then fail to appreciate the other person for who they truly are. Instead, we love what they represent, what we hope for, or what we ourselves project onto them.
It is not necessarily a matter of Neptune acting in one way and Venus exerting its influence separately. The two functions are so closely intertwined that the ideal becomes inseparable from romantic feeling. And therein lies the difficulty: how can we distinguish what we feel from what we imagine when both arise from the same impulse?
In Synastry: When Two Planets Meet
In synastry, the conjunction takes on a particular dimension because the two planets belong to two different people. A planet from one chart overlaps with a planet from the other. Their energies meet at the same point and influence one another. This proximity may create a feeling of immediate recognition, a sense of connection and sometimes even intense attraction.
But once again, everything depends on the planets involved. Imagine one person's Mercury conjunct the other's Jupiter. Mercury brings curiosity and communication. Jupiter broadens perspectives and encourages exploration.
Conversations between these two people may become fascinating. Ideas multiply, stimulating the conversation. This is the kind of encounter where two people can spend hours putting the world to rights!
Yet this ease can also encourage exaggeration and increasingly ambitious projects that never actually materialise.
Now consider one person's Mars conjunct the other's Pluto. The dynamic changes completely.
Mars brings momentum, the need to act and the desire to assert oneself. Pluto intensifies and transforms, bringing questions of power and control to the surface. The encounter may become magnetic, passionate and profoundly stimulating. But this intensity can also trigger power struggles or reactions that are difficult to control.
In both cases, the conjunction concentrates energies. What changes radically is the nature of that concentration.
And when two people fit together too easily in the way they function, another phenomenon may emerge: they sometimes share the same blind spots. Each reinforces the other's way of seeing, thinking or acting, without necessarily questioning it. Their complementarity can feel so natural that certain imbalances become difficult to recognise.
In Transit: When the Spotlight Moves
In a natal chart, a conjunction belongs to the original structure. It accompanies the way we are, function and react throughout our lives. But when a transiting planet reaches a natal point, the spotlight becomes part of a movement. It temporarily concentrates its energy within a particular space.
Depending on the transiting planet, this encounter may accompany a period of expansion, new responsibilities, initiatives or transformations.
A Jupiter transit opens perspectives and amplifies certain possibilities. Saturn may demand greater structure or confront us with limitations. Mars stimulates action and can accelerate decision-making.
The house involved helps us identify the area of life in which this activation may manifest. The duration of the phenomenon varies according to the speed of the planets and any retrograde motion they may undergo. But the principle remains the same: one energy joins another, temporarily concentrating their expression.
In progressions, a conjunction marks an important stage of inner development, when two functions begin to operate together more closely than before.
Learning to Distinguish the Forces at Work
A conjunction is therefore not simply an aspect of union or harmony. It can generate considerable power, but it can also create a way of functioning so tightly integrated that introducing nuance becomes difficult.
The aim is not to break this fusion. A conjunction remains a conjunction: the two energies are closely linked. The challenge is to understand what each contributes, what each strengthens in the other and what may remain invisible when both operate simultaneously.
For the spotlight does more than illuminate. It also defines the limits of our field of vision.
