イザナギは亡き妻イザナミを追って黄泉の国へ下った。
Izanagi descended to the land of the dead in pursuit of his late wife Izanami.
黄泉の国の食べ物を口にすると、二度と現世には戻れないという。
It is said that once you eat the food of the underworld, you can never return to the world of the living.
祖母は「もうすぐ黄泉の国へ旅立つよ」と笑って言った。
My grandmother said with a smile, "I'll be setting off for the land of the dead soon."