Overview and Primary-Source Edition

The Complete Ennichi

Why does a buddha's sacred day fall when it does?

On temple notice boards and calendars you will see "Today is the ennichi of such-and-such a buddha." An ennichi is a day on which one is said to form a special bond with a particular buddha. Most recur every month: the 8th for Yakushi, the 18th for Kannon, the 24th for Jizō, the 28th for Fudō, the 30th for Śākyamuni. There are also several kinds with different origins, such as those tied to the rules of the calendar, the waxing and waning of the moon, or the memorial day of a founding master (the eminent monk who established a school). This essay first sets out the origins of the ennichi in a general discussion, dividing them into five lineages, and then traces the sacred days of the principal buddhas one by one in a series of particular discussions. It is an overview that confirms why each date falls when it does, going all the way back to the original passages of the scriptures.

Part One: General Discussion

Why does the ennichi "deliberately" choose a day?

The ennichi did not exist in early Buddhism. Śākyamuni dismissed as delusion the practice of deciding one's conduct by lucky and unlucky days or by the movement of the stars. That the ennichi exists nonetheless is because the teaching of the Buddha was overlaid onto the rhythms of the calendar that people already kept. To make use of a fixed day as a "day to restrain oneself" or a "day to form a bond with a buddha": this is an expedient means (hōben) for guiding people.

For this reason, several principles for fixing the day coexist within the ennichi. None is the orthodox one and none a mere offshoot; each binds devotion to a buddha onto a calendar that originally lay outside Buddhism. In what follows we examine, in five parts, the principle and the scriptural basis of each: the days of abstinence (sainichi), the thirty hidden buddhas (sanjūnichi hibutsu), the sexagenary cycle (eto), waiting for the moon and the sun (tsukimachi and himachi), and the days of remembrance for founding masters (soshi) and kami.

縁日の五つの系統

仏教は本来、日に吉凶を立てないそれでも、人々の暦に信仰を重ねて「縁日」を立てた(方便)
縁日(仏とご縁を結ぶ特別な日)
日の決め方には、五つの系統があります。
1斎日六斎日・十斎日に仏を配する
2三十日秘仏30日に仏を配し、毎月の縁日へ
3干支十二支で日を決める
4月待・日待月の出を待って祈る
5ゆかりの日祖師・高僧の命日
縁日は、仏とご縁を結ぶ特別な日です。その日づけの決め方には、斎日・三十日秘仏・干支・月待や日待・ゆかりの日(祖師や高僧の命日)という五つの系統があります。

Part Two: Particular Discussions

The ennichi of the principal buddhas

From here we examine the origin of the ennichi for each of the principal buddhas, one deity at a time. We first present a ready-reference table of the monthly ennichi, and then trace, in the order of tathāgatas, bodhisattvas, wisdom kings, devas, and founding masters and kami, each date while indicating to which lineage it belongs.

Conclusion

What the numbers tell

佛法中、日無好惡
In the Buddha's Dharma there is no good or ill in a day (*Treatise on the Great Perfection of Wisdom*, fascicle 13).

We have traced the numbers of the ennichi along the five lineages, back to the original passages of the scriptures, and confirmed them one deity at a time for each of the principal buddhas. These numbers are indeed related to Buddhism, but the form of the relation is not a single one. The days of abstinence are the oldest stratum, beginning with the uposatha and rooted deeply in the scriptures; the ten buddhas of abstinence are the stratum that assigned a buddha to each day; the thirty hidden buddhas are the stratum of custom that spread from China to Japan; the sexagenary cycle and moon-waiting are each a stratum of devotion to the calendar and to the moon; and the ennichi of founding masters and kami are a separate category deriving from memorial days.

Jizō on the 24th is the deity most deeply confirmed by the scriptures; Fudō on the 28th is the deity overlaid as the manifestation of Mahāvairocana in the soil of Japan; the Daishi on the 21st is an ennichi of a separate lineage deriving from a memorial day. All lie within the same Buddhist endeavor, yet their origins and their certainty each differ.

To restrain oneself and accumulate good on a fixed day is an expedient means for guiding people toward the good, not because there is fortune, good or ill, in a day itself. The ennichi is the trace of an endeavor to form a bond with a buddha, an expedient means carried on for a thousand years. Please, on the day near you, quietly bring your palms together.

With palms joined

Byodoji (the Twenty-Second Sacred Site of the Eighty-Eight Sacred Sites of Shikoku)