Astrologers usually consider a close aspect of a planet when it falls on significant points in the horoscope - planets or cusps. However, all aspects of the planet are essential as they play a role in primary directions as promittors. And most importantly, these aspects can change their meanings and be read in both directions.
Aspects as Promittors
In the primary directions, the degree of a dexter or sinister aspect is the promittor - the active force which triggers the event. To understand the effect of this aspect, we must examine
- celestial and terrestrial state of the planet, which casts the aspect,
- the nature of the aspect itself,
- the degree of the aspect - its dispositor and the house it falls.
Here is an example of how we can investigate the promittor.
Celestial and terrestrial state of the planet
For example, the Sun in the 10th house at 17° Aries is in a beautiful essential state, which means fame and success since its natural meaning and terrestrial state are consonant.
The dispositor of the aspect and house it falls
The Sun's trine falls into 17° Saggitarius. Suppose it is the middle of the 7th house of other people. At the same time, Jupiter is a natural benefic, the dispositor of the 17th degree of Sagittarius. Suppose Jupiter is well deposited (by celestial state and location in a fortunate house). You can think of this as the Sun conjunct with well-disposed Jupiter in 17° Sagittarius.
The effect of the aspect related to the house in question
The trine of the Sun in the 7th house shows noble people - this is in tune with the nature of the 10th house - high-ranking partners can help fame and success. Therefore, the celestial and terrestrial state of the Sun's trine is in good shape and enforces the 10th house.
Such a trine (promittor) in directions to MC (significator) will bring fame and success due to the help of partners. But, before this direction occurs, the effect of this trine doesn't manifest toward 10th house matters.
Several Meanings of the Same Aspect at the Same Time
The same promittor might change its meaning if directed to different significators or if it relates to different houses. Let's have a look at the example.
Suppose the 2nd house cusp is in Leo, meaning the same Sun shows money in our example. Then the 17° Sagittarius in the 7th house will show noble partners connected with the native's money. This trine also has an excellent effect on wealth. Such a promittor will bring money.
Now, let's take the 2nd house as the significator of money. Something good will happen to the wealth of the native when the trine of the Sun (promittor) approaches the 2nd house cusp (significator). Namely, he will receive financial support from the noble partners.
But it is another meaning of the same aspect.
Close Aspect Works Both Ways
It often happens that the degree of the aspect of one planet is within the orb of another planet. It means one planet influences another. But the second planet, in turn, influences the first.
For example, the ruler of the 1st house, Jupiter, is in the 2nd in opposition with Mars in the 8th.
On the one hand, this aspect colors the native's Jupiterian character and gives it a Martial touch. This particular opposition speaks of the influence of Mars (violence from the 8th) on the life of the native. That is, it portends a violent death.
On the other hand, Jupiter influences Mars. The native cannot influence violent death, but Jupiter, the natural significator of justice, can. So then, the same aspect of Jupiter towards Mars portends the death penalty by judgment.
As you can see, the same aspect has two different meanings simultaneously.
One Aspect Can Have Opposite Meanings
The same aspect might contain two opposite meanings. Assume a debilitated Saturn rules the 2nd house. At the same time, Pars of Fortune and benefics are in the 2nd - it strengthens the wealth.
The trine of Saturn falls into the 1st house and is in close aspect with the Sun, the significator of the native himself. Such a trine portends money (due to the strengthening of the 2nd house and the form of a trine), but with a touch of Saturn - through difficulties and misfortunes. That is, the effect of Saturn on the Sun is generally positive here or at least neutral.
At the same time, the debilitated Saturn is in the 8th house (which also contains Mars, the significator of violence, cojoined with Saturn). So Saturn shows violent death. Then the total effect of the exact Saturn on the same Sun in the same aspect will be opposite - a close trine of Saturn, especially applying, portends a violent death.
As you can see, the same aspect can change meaning depending on the terrestrial state of the planet that casts this aspect.
These opposite meanings of the same aspect will manifest in different primary directions at different times. Until then, they are in a potential state and do not contradict each other.