As many know, there is a period of time every couple of days when the transiting Moon has made its last aspect to another body in the sky before changing signs which is described as a Void-of-Course Moon period. It can last from a few minutes to over a day, depending how late in signs the planets are at the time. Because the Moon at this time doesn't really have its "feet on the ground," it is generally considered a period unfavorable for tangible decisions that require solid support, but an excellent time for insight, relaxation, and reaching outside of confining boundaries. Ptolemy swore by it, nearly two millennia ago, and so do most astrologers to this day.
Itís generally considered a bad time to make purchases, sign contracts, start major new ventures — anything that you need to rely on down the line. Ordinary daily routine is OK, just not big moves, as outcome is often wild and unpredictable. Events already in operation at the time it begins often suddenly lose their footing and destabilize.
On the other hand, itís a great time to relax, party, get creative, and generally float free — when what you want is the wild and unpredictable, a break from ordinary and sometimes confining stability.
This sounds like transits talking here, but itís not. This is natal astrology — in its electional form — at its best. The ultimate reasoning behind the VOC Moon is that everything you do has a birth chart — whether itís a purchase, a contract you sign, a personal commitment — and if the Moon of that chart progresses into another sign without making an aspect while in its original sign, it just isnít sufficiently in touch with itself to hold its ground. It sags and shifts, somehow out of touch with its own lunar sign placement and favoring the next, like itís lacking a leg or some other important piece of structure to hold it together in its infancy, so to speak. Something is missing in the very foundation of whatever is begun in that VOC period, which makes its subsequent evolution unpredictable. Of course, when predictability is just what you donít want — like when youíd really like to be spontaneous, be surprised — the VOC is just where you want to be. You want your platform to collapse under you so you can feel the adventure of free fall. In fact, those born with a VOC Moon have a bit of that free fall about them all their lives, reinventing themselves constantly as a result — examples include Ted Turner and Winston Churchill.
Transits, however, are another thing. When the Moon and other bodies make aspects to your natal chart, itís like the ticking of your own, inner cyclical clock, driving the pace of your day. As the Moon passes through each sign, it makes aspects to planets in your chart in the degree order they occur, from early in signs to late — tick, tick, tick. This creates another approach to the VOC phenomenon that isnít so well-known, and that might be called the Personal Void-of-Course Moon. If you have natal planets late in one or more signs, an ordinarily Void-of-Course Moon may still be making aspects to your chart, allowing you a special exception from the rule and giving you a driving advantage at this time. It may not be a great time to make solid decisions in general, but youíre still in gear and making clear steps ahead, after others have gone adrift. Conversely, if your planets are mostly early in signs, then for you the Moon goes personally Void-of-Course sooner than for the rest of the world, allowing you to check out, get creative, and party early, while others are still in a more mundane frame of mind. So, every couple of days when the Moon gets late in its sign, watch when it makes its last aspect to your chart, then see what rest of its transit through that sign is like for you.
Try it out, get the feel of it — you may see that it gives you a special edge over those who may be watching the ordinary Void-of-Course period alone. A tip of the hat to the great Al H. Morrison, who popularized the VOC Moon among modern astrologers, for privately suggesting this additional approach many years agoÖ
And, if you donít feel like calculating it in your head every day, the Personal Void-of-Course Moon is included in Matrix Software's Day Watch calendar program and Lunar Return report as well.