Module 6 · Lesson 6-5 · 15 min
You now own the navamsha — the heaviest varga in the toolkit — and the grid that weighs it against the rashi. Time to collect the rest of the family. Today: two small, sharp charts. The drekkana (D3) answers for your siblings and your nerve. The chaturthamsha (D4) answers for your home, your land, and whether you ever feel settled in it.
Here is the good news you may not expect: you already know how to read them. Lagna, lord, karaka, question-house — the method you built for the D9 transfers whole. The only genuinely new material in this lesson is two counting rules, and each takes one sentence to state.
Better still, the rules are not arbitrary. The D3 counts along the trines. The D4 counts along the kendras. The house classes you memorized back in lesson 15 turn out to be the gears the vargas run on — and once you see that, you will never need to look these rules up again.
By the end: Compute the drekkana (D3) sign of any planetary degree by the trine walk and the chaturthamsha (D4) sign by the kendra walk, name each varga's domain, and read a sibling or property question inside the finer chart with the same four looks — lagna, lord, karaka, question-house.
The drekkana (D3) cuts each sign into three 10-degree parts. The first part (0–10°) stays in the sign itself. The second (10–20°) jumps to the 5th sign from it. The third (20–30°) jumps to the 9th. One walk around the sign's own trine — 1, 5, 9 — and the chart is built.
15° Aries: second part, 5th from Aries — Leo. 27° Libra: third part, 9th from Libra — Gemini. 12° Cancer: second part — Scorpio.
Siblings, courage, effort, initiative — the drekkana is the 3rd house magnified into a full chart, and notice the mnemonic: the divisor echoes the house, D3 for the 3rd. Read the D3 lagna and its lord for the native's drive; read the D3's own 3rd house plus Mars, the karaka from lesson 10, for siblings.
A question about one specific sibling? Lesson 37's derived-house logic works inside the D3 — count the derived house from the D3's 3rd.
The drekkana is among the zodiac's oldest divisions — its 36 faces appear across ancient iconography. Classical texts also weigh it for the body, and one lineage reads the 22nd drekkana for endings. Name these and file them; they are later lessons' business. Today the D3 is siblings and courage, nothing more.
If a text mentions the 22nd drekkana, you now know the chart it lives in — that is all this course asks of you yet.
The chaturthamsha (D4), also called turyamsha, cuts each sign into four parts of 7 degrees 30 minutes. First part (0–7°30′): the sign itself. Second (7°30′–15°): the 4th sign from it. Third (15°–22°30′): the 7th. Fourth (22°30′–30°): the 10th. The walk is the kendras — 1, 4, 7, 10.
10° Aries: second part, 4th from Aries — Cancer. 28° Aries: fourth part, 10th — Capricorn. 9° Taurus: second part — Leo.
Property, home, land, vehicles, fixed assets — and underneath the deeds and keys, the 4th house's sukha (contentment): whether the native feels at home in the life. Again the divisor echoes the house. Read the D4 lagna and its lord for the asset picture; the D4's own 4th; and the karakas — Mars for land, the Moon for home.
A strong D4 lagna lord with an afflicted D4 Moon: the portfolio grows, the house never quite feels like home.
Step back. The D3 walks the trines — 1, 5, 9. The D4 walks the kendras — 1, 4, 7, 10. The D9's counting runs by modality, sign class again. Every varga's counting rule is a house-class walk from lesson 15. The classes were never decoration; they are the zodiac's internal gears.
Forget a rule mid-reading? Recover it: D3 has three parts, so it rides the three trines; D4 has four, so it rides the four kendras.
The meta rule
Lagna, lord, karaka, question-house — just inside a finer chart. A sibling question runs the D3 exactly the way a marriage question ran the D9; a property question runs the D4 the same way. The skill never changes; only the resolution does. Learn the walk, then read as you always read.
Property question: D4 lagna and lord, the D4's 4th, Mars for land, Moon for home. Four looks, one verdict.
Mars sits at 18° Sagittarius in the D1. Compute its drekkana sign.
First find the part — which 10-degree band holds 18°? Then walk the trine that band names.
Saturn sits at 23° Gemini. Compute its drekkana sign.
23° is past the 20° line — which part is that, and which trine does it take?
Venus sits at 12° Pisces. Compute its chaturthamsha (D4) sign.
The D4's parts are 7°30′ wide — which band holds 12°, and which kendra does that band take?
Jupiter sits at 25° Leo. Compute its chaturthamsha sign.
25° is past 22°30′ — the last band. Which kendra closes the walk?
7 cards added to your recall deck. First review: tomorrow.
Five questions with the lesson closed — compute drekkana and chaturthamsha positions cold, keep the two walks from bleeding into each other, and route a real question to the right varga.
5 minutes · 5 questions · pass at 4/5.