Chapa Yoga: the bow shape from the 10th house to the 4th, and a reading the two texts dispute

Chapa is a bow - BPHS lists it as "Dhanushi (Chap)" and Saravali adds a third name, Karmuka, both words for the same weapon. Chapa Yoga is the last of the four seven-house shapes among the Nabhasa yogas: its block starts at the 10th house, the top of the chart, and runs through the rising sign down to the 4th, the bottom. Each of those seven houses must hold one of the seven grahas. The page below states the rule as the engine applies it, sets out a real disagreement between the two classical texts, explains why the shape is so rare, and walks through the engine's first case. For the general limits of any yoga, see what a yoga in your chart means.

The rule: how Chapa Yoga forms

BPHS Ch. 35 Sl. 14 counts four seven-house blocks from the four angles; the one from Karm, the 10th house, is Chap Yoga, and the sloka insists that "the Grahas should occupy seven continuous Bhavas". The engine checks:

1. 1.The seven grahas: Sun, Moon, Mars, Mercury, Jupiter, Venus, Saturn. Rahu and Ketu are not counted.
2. 2.Houses are whole signs from the ascendant.
3. 3.Every graha is in one of the houses 10, 11, 12, 1, 2, 3 or 4 - from the 10th through the 1st to the 4th.
4. 4.Each of those seven houses holds one, so houses 5 to 9 hold none of the seven.

The code builds the block by counting seven houses from the 10th and wrapping from 12 back to 1. Nothing about the grahas' strength enters the test; a debilitated or retrograde graha fills its house like any other.

Where the shape sits in the sky

In whole-sign houses the 10th is the sign at the top of the sky, the 1st the sign rising in the east and the 4th the sign at the bottom. Chapa's block is therefore the eastern half of the chart, from the top through the eastern horizon to the bottom. The Sun is always inside a cluster like this, because Mercury never strays more than about one sign from it and Venus no more than about two, so Chapa needs the Sun in the eastern half: roughly the hours between midnight and noon. The two moments the engine's walk found are at 03:53 and 10:12 IST.

Choices built into the test

• All seven houses filled. The sloka's "seven continuous Bhavas" supports this, and the engine applies the same strict reading to every Akriti shape so that one cluster cannot form two of them.
• Seven grahas only, as Saravali Ch. 21's "seven planets" implies.
• All forming yogas reported. Seven grahas in seven signs is Veena Yoga, which BPHS Sl. 16-17 would set aside when another Nabhasa yoga forms; the engine shows both.

What the classical texts say: happy in the middle, or poor in the middle?

Both texts open with the same traits. BPHS Sl. 39 reads the native as a liar who protects secrets, a thief, fond of wandering and of forests, and devoid of luck. Saravali Sl. 24 has the liar, the thief and the forest-dweller too, and adds jailer. Then they part. BPHS ends with "happy in the middle of the life". Saravali ends with the opposite: he "will not have wealth in the middle of his life".

That is a direct contradiction about the same period of life, in two texts whose lists otherwise run in parallel. The corpus gives no way to tell which reading is older or whether one is a slip, and this page does not guess. The engine chose BPHS. Its sentence for the yoga is: "Classically read as a secretive, wandering nature drawn to the outdoors, with the middle of life classically the happiest." The thief and the liar are reframed as secretiveness; the forests become the outdoors; the middle of life follows BPHS.

The disagreement stands out because the neighbouring shape Chatra Yoga, the mirror block from the 7th to the 1st, gets matching readings in both texts - happiness at the beginning and end of life. With Chapa, one text puts the good years in the middle and the other the lean ones.

Two general statements frame all of this. Saravali Sl. 8-10 reads any Akriti yoga as contentment with one's own fortune and earnings through a king. And BPHS Sl. 50 and Saravali Sl. 20-21 both say the Nabhasa results are not tied to any dasha. The corpus's other texts - Jyotisha Siddhanta Sara, Advanced Predictive Astrology and the Bhrigu Sutras - do not mention Chapa, Karmuka or Dhanushi Yoga. Jyotisha Siddhanta Sara's yoga chapter (pages 145 to 154 of the scanned edition in the library) is organised around five other groups - yogas from the ascendant, Raja yogas, lunar yogas, solar yogas and exchanges - and has no section on the Nabhasa shapes at all.

How rare it is

Chapa Yoga never formed in the engine's 3,000 sampled birth moments 1985-2060. The full 20,000-moment walk (1985 to 2483) met it twice: first on 19 December 2299 at 03:53 IST, then on 4 January 2354 at 10:12.

Seven-house shapes are rare for one reason above all. Having the seven grahas inside some seven-house run is common - 1,340 of the 3,000 sampled moments, on the engine's positions - but having every house of the run occupied is not: 4 times in the 3,000 and 29 times in 20,000. Each house must hold exactly one graha, so the Sun, Mercury and Venus, which stay close together, must still occupy three different signs, and the Moon, Mars, Jupiter and Saturn must fill the remaining four with no gap and no doubling.

Even then, the shape is Chapa only while one sign is rising. A scratch run of the engine through the night of 19 December 2299 shows the switch: at 01:30 IST Virgo rises and the engine reports Ardha Chandra Yoga; at 03:53 and 04:30 Libra rises and it reports Chapa; at 05:00 the ascendant has just entered Scorpio and the report is Ardha Chandra again. The planets barely move in those hours; the house numbers do.

Worked example: the engine's first Chapa chart, 2299

Because the 1985-2060 sample has no Chapa moment, the example is the walk's first: 19 December 2299 at 03:53 IST, New Delhi. It is shown as the engine's computation for that moment, to make the shape concrete, not as a statement about anyone born then. You can enter it in the birth chart calculator. The ascendant is Libra at 15.82 degrees.

1. 1.All seven inside houses 10 to 4: Saturn, Jupiter, Mars, the Moon, the Sun, Mercury and Venus, in order. Holds.
2. 2.Every house occupied, one each. Holds.
3. 3.Houses 5 to 9 hold none of the seven. Rahu in the 8th is in that empty stretch and Ketu shares the 2nd with the Sun, but neither is counted.
4. 4.Mercury is one sign ahead of the Sun and Venus two signs ahead - both on the same side, with Venus at the far end of its range. That is how the inner trio fills three consecutive houses here.

The engine reports: "All 7 classical grahas (Sun through Saturn) sit in houses 10, 11, 12, 1, 2, 3, 4 of your chart, and each of those houses holds at least one - a Nabhasa "Akriti" (shape) Yoga." The interpretation line is the BPHS-based sentence quoted above. The Sun in the 2nd house fits the hour: before dawn, with the Sun below the eastern horizon.

The engine's full report for this moment lists five yogas: Anapha (Mars in the 12th from the Moon), Vesi (Mercury in the 2nd from the Sun), Veena, Chapa and Kendra-Kona Raj Yoga. Saturn is retrograde in the 10th and Mercury is in an enemy sign; the shape takes no notice.

Chapa beside its siblings

The four angle-based seven-house blocks are Nauka (1st to 7th), Koota (4th to 10th), Chatra (7th to 1st) and Chapa (10th to 4th), with Ardha Chandra for the eight others; only one can form at a time. Chapa is the mirror of Koota, the eastern half of the chart against the western. The four-house shape that also starts at the 10th is Danda Yoga, and it cannot form together with Chapa, which needs the 2nd to 4th houses filled. Chapa holds three kendras - the 10th, 1st and 4th - so in principle it could coincide with Maala or Sarpa Yoga; in the 2299 chart they hold Saturn, the Moon and Venus, a mix, so neither forms.

What a yoga does not tell you

Chapa Yoga records that the seven grahas stood one to a sign across the eastern half of the sky. The two classical texts agree on a set of traits for it and disagree about the middle of life; this app reports a softened version of the BPHS line. A shape the engine met twice in roughly five centuries of sampled moments offers no way to test either reading, and neither text ties it to a dasha. A yoga is a named rule about positions, not a forecast.

To check a chart for Chapa and every other Nabhasa shape, run the yoga calculator; it shows each graha's house, so you can see the shape - or how far a chart is from it.

Questions about Chapa Yoga

What is the rule for Chapa Yoga?

All seven grahas from the Sun to Saturn in the 10th, 11th, 12th, 1st, 2nd, 3rd and 4th houses, with every one of those seven houses occupied - one graha in each. BPHS Ch. 35 Sl. 14.

Is Chapa Yoga the same as Karmuka or Dhanushi Yoga?

Yes. All three words mean a bow. BPHS lists it as "Dhanushi (Chap)", and Saravali heads its sloka "Chapa Yoga (Karmuka Yoga)".

Is the middle of life good or bad with Chapa Yoga?

The texts disagree: BPHS Sl. 39 says happy in the middle of life, Saravali Sl. 24 says without wealth in the middle of life. This app's sentence follows BPHS, and treats both as classical readings, not predictions.

How rare is Chapa Yoga?

It never formed in 3,000 sampled birth moments 1985-2060. The engine's 20,000-moment walk to 2483 met it twice, in 2299 and 2354.

Why does the yoga change to Ardha Chandra when the birth time moves?

Because the same planets, counted from a different rising sign, fill a block that starts at a different house. A block starting at the 10th is Chapa; one starting at the 9th or 11th is Ardha Chandra. In the 2299 example the engine reports Chapa while Libra rises and Ardha Chandra either side.

Can Chapa Yoga form together with Danda Yoga?

No. Both blocks start at the 10th house, but Danda needs all seven grahas inside the 10th, 11th, 12th and 1st, while Chapa needs the 2nd, 3rd and 4th occupied as well. A chart can meet one rule or the other, never both. The same holds between every four-house shape and the seven-house shape that starts at the same angle.

Does Chapa Yoga always come with Veena Yoga?

Yes. Seven grahas in seven houses means seven signs, which is Veena. BPHS Sl. 16-17 says Veena is not operable when another Nabhasa yoga is present; the engine reports both.