The Void (空亡 Kōngwáng) is the strangest of the symbolic stars (神煞 shénshà) — not a bright branch but two hollow ones. Its reputation is absence: matters that fall on a Void branch feel unanchored, half-present, hard to hold. The Void bazi practitioners read carefully, because it does not simply harm. It hollows — weakening both the good and the bad that touch it.
How to find your Void
The Void is found from your day pillar’s decade (旬 xún) — the ten-pillar cycle your day pillar belongs to within the sixty-pillar calendar. Each decade has two Void branches. Locate your day pillar’s decade below and read off the pair, then check whether either appears among your four branches.
| Day pillar decade (旬) | Void branches |
|---|---|
| 甲子 – 癸酉 | 戌 & 亥 (Dog & Pig) |
| 甲戌 – 癸未 | 申 & 酉 (Monkey & Rooster) |
| 甲申 – 癸巳 | 午 & 未 (Horse & Goat) |
| 甲午 – 癸卯 | 辰 & 巳 (Dragon & Snake) |
| 甲辰 – 癸丑 | 寅 & 卯 (Tiger & Rabbit) |
| 甲寅 – 癸亥 | 子 & 丑 (Rat & Ox) |
A worked example: say your day pillar is 丙寅 Bing Yin. It falls in the 甲子 – 癸酉 decade, so your Void branches are 戌 Dog and 亥 Pig. Scan the other branches of your chart — year, month and hour — and any that land on 戌 or 亥 sit in the Void. Plot your pillars first with the free calculator, then work out which decade your day pillar belongs to and read off the pair.
The logic behind the table is tidy once you see it: each decade runs ten day pillars through twelve branches, so two branches are always left out. Those two leftovers are the Void. It also yields a detail worth knowing — your own day branch can never sit in its own Void, because it is by definition one of the ten branches the decade does use. The spouse palace, in other words, is never hollow by this rule; the Void always falls somewhere else in the chart.
What it means when you have it
A branch in the Void reads as unanchored — the affairs of that pillar feel provisional, deferred, or oddly weightless. A wealth star sitting in the Void may promise money that never quite settles; a relationship pillar in the Void can read as a bond that feels present and absent at once. Crucially, the Void cuts both ways. It softens misfortune as much as fortune. A harsh star in the Void loses some of its bite; a benevolent one loses some of its help.
The Void is not permanent. When a luck pillar (大运 dàyùn) or annual branch clashes or combines with a Void branch, the hollow can “fill” — the dormant matter suddenly becomes real, sometimes all at once. That is why a Void pillar is worth watching across the timeline rather than dismissing.
Palace by palace: where the hollow lands
Since the day branch is exempt, the Void can only touch three seats, and each reads differently. In the year pillar, the hollow colours origins — ancestry, early environment, the family story — which can feel distant or unclaimed, the person who built themselves without leaning on where they came from. In the month pillar, the seat of career and parents, matters of work and standing can carry the provisional flavour: roles held without feeling owned, achievements that take longer to feel real. In the hour pillar — children, ambition, later life — the Void reads as plans and legacies that stay open-ended, which suits some lives and unsettles others.
Whatever else sits on the hollow branch is hollowed with it. This is where the Void earns its reputation as the great qualifier of other stars: a Nobleman in the Void is help that feels harder to reach; a harsh marker in the Void has its teeth dulled. The Void licenses none of the dramatic conclusions people reach for — it never says an area of life is cancelled, only that it is loosely moored until something fills it.
Questions we hear about the Void
Is the Void always bad?
No — and this is the most misunderstood point. The Void weakens whatever it touches, good and bad alike. A difficult configuration falling on a Void branch is genuinely softer. Absence of anchor is not the same as presence of harm.
Both my Void branches appear in my chart. What does that mean?
Two pillars carry the unanchored quality instead of one. Read each by its palace, as above. It is a heavier dose of the same flavour, not a different phenomenon — and both remain candidates for filling when the right branch arrives.
Can the Void be filled permanently?
The filling follows the timeline. A luck pillar that clashes or combines the Void branch activates it for that pillar’s span; an annual branch does the same for a year. When the trigger passes, the hollow tendency returns, which is why we read the Void as a recurring theme rather than a one-time event.
Keeping it in proportion
Symbolic stars are seasoning, not the meal. The Void tells you a pillar is hollow in flavour, but it does not overrule the structure — the Day Master (日主 rìzhǔ), its strength, and the ten gods (十神 shíshén) that carry the chart’s real weight. Some schools weigh the Void heavily; others treat it as a minor modifier. We read it as a qualifier on whatever else is happening in that pillar, never as a verdict on its own.
So read the Void after the structure is clear. Build the chart with the proper reading order, weigh whether the Day Master is strong or weak, and let the Void adjust the pillars it touches at the end. The classic mistake is to see a Void and pronounce a whole area of life “empty” — dramatic, and rarely how the chart actually behaves.
For the full family, see the symbolic stars overview. The Void pairs interestingly with the Nobleman star: a Nobleman sitting in the Void is a classic reason two readers reach different conclusions about how much help a chart really carries. Its quieter contrast is the Canopy star — the Canopy withdraws into a branch, the Void hollows one out.
Find the Void in your own chart — plot your four pillars free with the calculator, then run the day-pillar decade lookup above.