In astrology, we have something called an aspect. An aspect is when two bodies are at specific distances from one another in the Zodiac. There are 360 degrees in the Zodiac, and when bodies are a certain amount of degrees apart, they are making an aspect.
Aspects are split between major and minor. The major aspects are said to have stronger energy than the minor ones, but that isn't *always* the case.
The major aspects are the conjunction, sextile, square, trine, and opposition, so there are only five major aspects. But there are way more minor aspects! Like a couple dozen. The most commonly used of the minor aspects are semisextiles and quincunxes (or inconjuncts). These two are more like halfway between major and minor though.
The minor aspects can be very strong in your natal chart. They don't have as much juice in predictive analysis (transits). But they can be important in your natal chart.
Two of the minor aspects are the quinqueundecim and the quindecile. The quinqueundecim is when two bodies are 163 degrees apart, and the quindecile is when two bodies are 165 degrees apart.
For minor aspects, you usually only consider an orb of influence (amount of degrees it can be from exact) of less than 2 degrees, sometimes 1 degree. This means if you have two bodies 164 degrees apart, they are making BOTH the quinqueundecim and quindecile aspects.
164 Degrees in Astrology: The Hardest Angle
Why am I highlighting this? Because this could possibly be the most difficult of all positions to have two points at, especially two personal planets (Sun, Moon, Mercury, Venus, Mars).
A lot of attention is paid to the quindecile as being an incredibly difficult aspect, but having your planets 164 degrees apart means you also have to deal with the quinqueundecim, an overlooked aspect that isn't any kind of walk in the park.
This can be the absolute most difficult when it's your Sun and Moon that are 164 degrees apart. The aspect your Sun and Moon make can have a huge impact on you as a person because your Sun is your true self while the Moon is your emotional self. They're a little ego (Sun) and id (Moon). If they're at a harsh angle, you have difficulty working with the two harmoniously.
With the quindecile, you'll see the word "unrelenting" used a lot. It's obsessive. It's like Scorpio on steroids. But it's got a focus - unfortunately, when it's your Sun and Moon the focus is all on you, and that'll drive you bonkers.
With the quinqueundecim, especially between the personal planets, it shows someone who had some sort of disruption or was removed from society for some time and they must forgive, transform themselves, and help others with their experience. It'll just usually take a while to get there. A lot of people who wind up in relationships where they are trapped, who have parents who controlled their whole lives, or who suffer from accidents/illness that leave them confined have a prominent quinqueundecim.
The Way Out
Just because you have two points at difficult aspect to one another doesn't mean it's the end of the world. You can use the midpoint of those two points to use the energy positively so there isn't so much of a war, which is the exact middle in the Zodiac those two are apart.
Midpoints show how the energy of the two bodies merge naturally, so when you focus on their midpoint, you can find a way around the hard energy. Pay attention to those midpoints and you'll have a much easier job using your chart to your advantage! And this is especially the case if you have any planets 164 degrees apart. Find their midpoint!
Suggested Reading: Aspects Between the Natal Sun & Moon