Those of you who have been following this blog for a while probably have a pretty good idea what Kamiarizuki and En-musubi mean, but for those of you joining us recently, let’s recap:
Kamiarizuki:
In the classical Japanese calendar, the 10th month was referred to as Kannazuki, “the month without gods,” written as 神無月 (gods-nothing-month). Only in the Izumo region is the 10th month referred to as Kamiarizuki, “the month with gods,” written as 神在月 (gods-exist-month). This is become the gods around Japan all gather in Izumo at this time for an annual meeting. Although it refers to a month, the meeting is actually only a week long. Converted to the Gregorian calendar, it usually falls around late November or early December, and there is a week of rituals that take place at Izumo Taisha during Kamiarisai.
En-musubi:
En, written 縁, is a mysterious fate-binding power, or spiritual link between people and other people, or even with nature. “Musubi” (結び) is based on the verb “musubu” (結ぶ, “to bind”), so En-musubi (縁結び) is the act of linking fates, binding ties, or in the case of romantic relationships, matchmaking. It is often erroneously translated simply as having to do with marriage and matchmaking, but in fact it can encompass relationships between parents and children, teachers and students, business partners, friends, and beyond.
What is the tie between these two phrases? When the gods are meeting at Izumo Taisha, they are discussing how they are going to bind people’s fate in the coming year. This is because the former Lord of the Lands, Okuninushi, was given domain over this unseen realm in exchange for handing over dominion of the lands to the heavenly kami (more specifically to Ninigi, grandson of the Sun Goddess Amaterasu). Izumo Taisha was built in his honor.
The En-musubi “power spots” are not limited to Izumo Taisha. The gods also gather at nearby shrines, like Sada Shrine, and other shrines closely associated with the local mythology are also closely associated with matchmaking powers, like Yaegaki Shrine. In general, making your wish will make your wish heard throughout Japan, as gods from all over the country gather here to discuss them.

Granted, many of the popular En-musubi spots, like Matsue Vogel Park, have relatively short histories…(click for source)
Of course, you could just direct your wishes to Okuninushi himself. There’s a couple of bits of heresay I’ve picked up about this:
1. It’s bad luck to visit Izumo Taisha with your significant other you have not married yet. Only very strong couples survive that trip together.
2. 5 yen coins are good luck (because they are a pun for how to respectfully refer to En, “go-en“). 10 yen coins are bad luck.
3. When making your wish, you have to mentally convey your address so that the luck knows where to find you.
I’m not sure how much stock to put into each of those, but the one thing everyone will tell you is that there is a special way to pay your respects at Izumo Taisha. At most shrine, you bow and clap twice after offering your coins and mentally offering up your wish. At Izumo Taisha, you bow twice, clap four times, and then bow once more. This is supposed to be on your behalf as well as on your significant other’s behalf (whether you are bound in matrimony already or still have yet to meet your soul mate).
Because of Izumo Taisha’s reputation as a matchmaking shrine, it’s really fun to read the ema (prayer boards) people write and leave there.

“That I may hurry up and meet a wonderful woman and attain happiness”

“That I may get married within the next three years. That I may attain happiness.”

“That everyone may–no, definitely will–be granted eyes for seeing men” (written by a representative)

“N.S. is going to have the best husband ever–that’ll be me!!” – I.K.

“That Ka-kun and I might always, always get along as well as we did when we met <3, and that we'll always, always love each other <3, and be together our whole lives <3 (I'm gonna be I.K.'s wife!)" – N.S.
Of course, drawing omikuji slips is also just as popular as anywhere, and on busy times of year, you might have trouble finding spaces on which to tie them.
But does it actually work? I suppose that’s anyone guess. What with all the singles gathering here while the gods are gathered, I guess that bodes well for meeting someone.
If people can only visit one Shinto shrine in Japan, Izumo Taisha is the one I suggest given its scale, history, points of interest, and mythologically momentous background. Although the local mythology is felt throughout the San’in region, Izumo Taisha is the crowning glory of all that, and it feels appropriate to draw my descriptions of Kojiki mythology, as well as Nihonshoki and Izumo-no-Kuni Fudoki mythology, to a close here.
Well, kind of. I’m still planning on keeping up with my mythology themed nengajo (New Years card) and preparing something for the upcoming Year of the Monkey. I can’t think of any direct ties, but I did happen upon a street performer with a trained monkey once on a visit to Izumo Taisha!