Yamaka

Summary: The Yamaka ("Pairs") is the sixth book of the Abhidhamma Piṭaka. It is a highly technical work of applied logic designed to eliminate ambiguity in the use of doctrinal terms. By testing major categories through a system of paired questions and analytical reversals, it ensures that the student understands exactly where different classifications overlap and where they diverge (Yam 1-130; Yam 14307-14382).

Overview

The Yamaka is structured as ten independent "Pairs" (yamakas), each focusing on a fundamental doctrinal set. Within each Yamaka, the text uses a bidirectional method of questioning: "Is A always B?" and "Is B always A?" This process exposes asymmetrical relationships—for instance, showing that while all wholesome roots are wholesome dhammas, not all wholesome dhammas are wholesome roots (Yam 1-33).

The book's significance lies in its role as a "logic-drill." It trains the mind to avoid the common error of assuming that because two terms are closely related, they are identical in every context. By working through thousands of these paired permutations, the student develops a precise, error-free understanding of the Abhidhamma's technical vocabulary (Yam 131-220).

Significance: The Three-Part Structure

Most chapters (Yamakas) in the book follow a consistent three-part internal structure that tests the subject matter from different temporal and developmental angles:

Paṇṇattivāra (Section on Designation) — Tests the definitions of terms and their logical extensions in the present moment.
Pavattivāra (Section on Process) — Tests the arising (uppāda) and ceasing (nirodha) of phenomena across the past, present, and future for different types of persons and in different realms of existence.
Pariññāvāra (Section on Full Understanding) — Tests the relationship between the phenomena and the noble path, asking who has fully understood, is understanding, or will fully understand the given doctrinal category.

Structure

The Yamaka consists of ten major divisions:

Mūlayamaka — mula yamaka (Roots)
Khandhayamaka — khandha yamaka (Aggregates)
Āyatanayamaka — ayatana yamaka (Sense Bases)
Dhātuyamaka — dhatu yamaka (Elements)
Saccayamaka — sacca yamaka (Truths)
Saṅkhārayamaka — sankhara yamaka (Formations)
Anusayayamaka — anusaya yamaka (Latent Tendencies)
Cittayamaka — citta yamaka (Consciousness)
Dhammayamaka — dhamma yamaka (Phenomena)
Indriyayamaka — indriya yamaka (Faculties)

Each division begins with an Uddesa (short summary of pairs) and is followed by a detailed Niddesa (exposition with answers).

Key themes

Bidirectional Logic — Testing relationships through both the direct (anuloma) and reverse (paṭiloma) directions to establish precise boundaries.
matika matrices — The book operates by testing the categories established in the Dhammasaṅgaṇī and Vibhaṅga.
Temporal Analysis — Analyzing phenomena not just as static categories but as processes arising and ceasing over time (pavatti).
Spiritual Progress — Integrating the technical analysis with the stages of the noble path and full understanding (pariññā).

How to read

Read the Mūlayamaka first and let it teach you how the whole book works. The opening Uddesa gives the compressed pair-pattern; the following Niddesa shows why the answer to a forward question does not always force the same answer in reverse (Yam 1-33; Yam 131-172).

Then read the later yamakas as further applications of that same analytic drill rather than as ten unrelated treatises. The book becomes much easier once the reader sees that repetition is the teaching method: the same paired testing is being applied to increasingly important doctrinal sets such as aggregates, truths, latent tendencies, consciousness, and faculties (Yam 321-1492; Yam 3879-4865; Yam 5693-8084; Yam 9873-14382).

For source handling in this repo, pali-ms.txt is the canonical alignment grid, while pali-bjt.txt and si-bjt.txt preserve the Buddha Jayanthi page-entry segmentation in native form. The page therefore cites canonical Yam references and the Mahāsaṅgīti grid while leaving the BJT files unresegmented.

Textual notes

The Mahāsaṅgīti Pali (pali-ms.txt) uses ya... alignment-grid IDs, while the Buddha Jayanthi Pali and Sinhala files preserve native ap-yam:<page>.<entry> page-entry IDs. The two segmentation systems are both retained rather than mechanically forced into one another.
This round has no in-scope English translation for the Yamaka. The current page is therefore grounded in the authoritative Pali and the available Sinhala raw files rather than quoting an English canonical translation.
The BJT canonical Pali and Sinhala entry counts do not align perfectly in the extracted raw source, so these files are treated here as parallel native extracts rather than as a strict entry-by-entry pair.
The page keeps Yamaka at text level. It explains the book's schema and pedagogical method instead of trying to summarize every paired relation across all ten yamakas.
Raw commentary is present separately under raw/commentaries/atthakatha/abhidhamma/yamaka/. Commentary remains a separately flagged layer rather than being folded into canonical prose on this page.