Term hints
The School › Vedic · Nirayaṇa › Megha
मेघ
A Triveṇī Lesson

Megha & the Rains मेघ · कन्दाय

Before satellites, the almanac forecast the monsoon by arithmetic — a cloud for the year, a measure for its rain, and a ledger of the year's income and expense, all worked from the calendar's own numbers.
☉︎ Four movements ☿︎ ~10 min reading ☾︎ 1 living reckoner ✦ Mundane & Spiritual
Movement I सिद्धान्त

Siddhānta — the theory

W hat will the monsoon be? For a land that lives by rain, this was the almanac's most-read page — and its answer begins with plain arithmetic. Take the year's number in the śaka era, divide by nine, and the remainder names the year's cloud — one of nine meghas, each a whole character of monsoon: the wind-cloud that waters the crops, the dread-cloud of cyclones and floods, the black cloud that blows away dry, the timely thunder-cloud under which everything ripens.

Then the measure. The rain's quantity follows the year's King — the lord of the year — counted in tūmus, an old grain-measure: a Guru- or Śukra-year fills four tūmus, a Candra- or Budha-year three, a Ravi- or Kuja-year two, and a Śani-year one — the lean year of hunger.

And then the ledger. From the pañcāṅga's own numbers the almanac works a set of small sums: the kandāya, an omen-number cast from Ugādi day's weekday, star, yoga and karaṇa; the year's income and expense, reckoned from each graha's fixed dhruvaka number; and argha — the prices — read from the star of the month's first crescent. None of it is observation; all of it is calendar arithmetic, the year's numbers made to speak.

{{ fig1 }}
Fig. 1 — the almanac's rain-forecast machine: the śaka year-number, divided by nine, names the cloud; the year's King measures the rain in tūmus; the pañcāṅga's numbers work the kandāya and the ledger of income, expense and prices.

Movement I · Siddhānta — {{ lensLabel }}

◆ The Mundane lens · लौकिक the reading of the rains

The pañcāṅga's rain-pages are a complete folk-system: the nine meghas by the śaka remainder, the tūmu-measure by the year's King, kandāya with its dreaded śūnya (a zero in the sums warns of disease, fear or loss), and the ledger of ādāya-vyaya and argha — the whole agricultural year, worked out on Ugādi morning.

✦ The Spiritual lens · आध्यात्मिक the shared harvest

The rain-pages are the humblest astrology there is: they ask nothing about you. Cloud, measure, ledger — all of it belongs to everyone under the same sky, read aloud at Ugādi so the village planned together. To study them is to remember that the first purpose of a calendar was not the self but the field — food, and the sharing of a common year.

“The cloud does not ask whose field it waters. The almanac's rain falls on the whole village at once.”

निर्णय The settled reading

Arka keeps the rain-pages as heritage folk-meteorology — a beautiful machine of the pre-instrumental age, shown working, never offered against a weather service. Learn it for what it teaches about the almanac's mind: that a calendar can be made to speak about everything, and that its openness — every sum checkable — is its honesty.

Kept here in Arka's own voice.

◆ The Mundane lens · लौकिक the Vedic eye, alone
The Vedic eye

The śaka year divided by nine names the year's cloud; the year's King measures its rain in tūmus; kandāya casts the year-omen from Ugādi's numbers (a śūnya in the sums warns of disease, fear or loss); the dhruvaka arithmetic yields income and expense out of fifteen; and the month's first-crescent star reads the prices. The whole harvest, worked on Ugādi morning.

One eye of the pair, alone. Switch to Arka for the two joined — the blend, the spiritual lens and the super-theory.

◆ The Mundane lens · लौकिक the Western eye, alone
The Western eye

Europe kept the same craft in its farmers' almanacs — weather-rules by saints' days, zodiac planting-signs, prognostication pages. A pre-instrumental people asking the calendar for the harvest, because the calendar was the only instrument they had.

One eye of the pair, alone. Switch to Arka for the two joined — the blend, the spiritual lens and the super-theory.

नव मेघ The nine clouds — śaka mod 9 names the year's
{{ m.num }}. {{ m.en }}{{ m.dev }}
{{ m.omen }}
वर्ष-प्रमाण · अर्घ The rain-measure by the year's King — and the price-rule
Tūmus of rain, by the year's King
{{ t.kings }} — {{ t.note }}

Find the true King for any year in the Nine Lords instrument — it computes Ugādi's weekday from the real sky.

Argha — prices by the month's first-crescent star
{{ a.head }}
{{ a.stars }}

The star in which each month's new crescent is first seen sets that month's market: steady, falling, or rising.

Movement II अभ्यास

Abhyāsa — work the year's rain-page

The almanac's own sums, live. Pick a year — the cloud is pure arithmetic. Then choose the year's King and a rāśi, and the ledger works itself, exactly as the worked example in the book.

The year's cloud · मेघ
{{ ceYear }} CE
śaka {{ shakaYear }}
śaka {{ shakaYear }} ÷ 9 → remainder {{ meghaNum }}
{{ meghaName }} {{ meghaDev }}
{{ meghaOmen }}
The ledger · आदाय-व्यय
The year's King
For the rāśi (its lord's dhruvaka)
{{ ledgerLine1 }}
{{ ledgerLine2 }}
{{ ledgerLine3 }}
Ādāya · income
{{ adaya }} / 15
Vyaya · expense
{{ vyaya }} / 15
{{ ledgerVerdict }}
Honest arithmetic. The cloud is computed exactly by the rule (śaka = CE − 78, remainder of ÷9, a remainder of 0 counting as the ninth). The ledger uses the fixed dhruvakas — Ravi 6 · Candra 2 · Kuja 8 · Budha 17 · Guru 19 · Śukra 10 · Śani 9 — summed with the rāśi-lord's, ×3, +5, ÷15: the quotient is the income, and the same sum run again on the quotient leaves the expense. The book's own worked example (a Budha-King year read for Meṣa: 17+8=25 → income 5, expense 5) checks out on this reckoner. The kandāya proper needs Ugādi day's full pañcāṅga — the Panchang Explorer supplies it.
Movement III प्रयोग

Prayoga — name the idea at work

The rain-pages rest on six ideas. Each case shows one being used; name which. Nothing is scored — a wrong guess costs only the reasoning you build.

The six ideas · which is used?
{{ c.glyph }} {{ c.name }}
Tap the idea the case describes. Wrong guesses cost nothing — reason it out.
The casebook · case {{ caseNum }} of {{ caseTotal }} ↻ Shuffle

“{{ caseText }}”

Which of the six ideas is this?
You read it — {{ caseAnswerName }}.

{{ caseWhy }}

Not {{ casePlacedName }} — look again.

Ask what the case truly rests on — the śaka key, one of the nine clouds, the tūmu measure, the kandāya's zero, the dhruvaka ledger, or the crescent-star prices.

Reveal the answer
It was {{ caseAnswerName }}.

{{ caseWhy }}

{{ caseNextLabel }}
✦
Keep a monsoon-diary

{{ pPrompt }}

The confluence संगम · सिद्धि

Siddhi — name the idea unaided.

A single clue, and the six ideas of the rain-pages. Name which it describes — the fastest proof that you hold the whole reading in your head.

“{{ clueText }}”

Which of the six ideas does this describe?
Placement {{ qNum }} of {{ roundLen }}
Which idea answers this?
{{ feedbackTitle }}

{{ feedbackBody }}

{{ nextLabel }}
Round complete
{{ score }} / {{ roundLen }}
named unaided
{{ verdictTitle }}

{{ verdictBody }}

Run another round ↻
← The year's figure The Saṅkrānti Puruṣa Companion instrument → The Nine Lords of the Year