“What is an interception?” It’s called an interception when an entire sign is contained in a house, falling between two cusps rather than on either of them. This is what it looks like.
When one sign is intercepted, its sister sign will be as well; in this chart, the sign of Cancer is intercepted in the seventh house (between the 7th & 8th house cusps) so Capricorn is also intercepted, in the first house (between the 1st & 2nd house cusps). The cusps end up landing on the signs on either side.
Planets can be intercepted as well; an intercepted planet is simply a planet posited in an intercepted sign.
“What is a duplication?” Duplications are caused by interceptions. A sign is duplicated when two house cusps fall within it. This is what a duplicated sign looks like (from the same chart as the screenshot above).
Again, when a sign is duplicated, so will its sister sign be. In this chart, Gemini is duplicated on the 6th & 7th house cusps, and Sagittarius is duplicated on the 12th & 1st house cusps. This is because the houses & signs form axes.
Interceptions & duplications cannot happen in equal house systems.
“What do interceptions & duplications mean?” They indicate an immense imbalance of energy. The intercepted signs are buried, repressed, overshadowed, and basically not allowed or able to operate normally in the chart. On the other hand, duplicated signs work on overdrive & typically have “too much” influence. Both of these things are very unhealthy.
“What do intercepted planets mean?” Intercepted planets are hindered, internalized, weakened, and (again, like intercepted signs) basically not allowed or able to operate normally in the chart. They have to be reached & brought out, like retrograde / 12th house planets in a way. They’re trapped because their mode of expression is stifled.
“How do I regain balance & heal my intercepted signs / planets?” This is a very personal process that no stranger can help you through without analyzing your natal chart as a whole. Remember to use common sense; look at what the sign/planet in question is associated with, locate the core of the problem, and make the healthy decisions you feel will solve it.
“Once the imbalance & issues of interceptions / duplications are resolved, where would the intercepted signs manifest, since they have no influence over the areas of life represented by the houses?” They would manifest through the placement of their ruling planet, and possibly as a shadow of the house they’re intercepted in (behind the influence of the sign on the cusp). When the function of the sign is healed, its energy will come through no matter what, so you just have to look for it.
“What if the ruling planet of the intercepted sign is very strong?” It may be relatively easier for you to bring it out, because you have an equivalent energy to channel it through. Or the interception may not be much of a problem at all – the ruling planets function similarly to their signs, so it may work itself out naturally. It depends on the rest of the chart.
“What if the ruling planet of a duplicated sign is intercepted or weak?” If it is weak, there will be less of a problem, because the sign will not be as consuming & will have limitations. If it is intercepted, it will be even more of a confusing experience, because the excessive expression of the sign will not have a clear course & the native may end up subconsciously trying to repress it entirely or inflate it further. It also depends on the rest of the chart.
“What if the house associated with the intercepted sign is strong?” It may increase the influence of the archetype, or have no effect. (Note: it will not increase the sign’s energy, only the power/prominence of its archetype.)
“What if the house associated with the duplicated sign is weak?” It will likely not have a notable effect.
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