冥土

1. Origins, structure, and basic meaning

• Structure: Written 冥土 and read めいど, it is a traditional literary term for the realm believed to receive the dead.
• Basic usage: It appears in an old tale about departure after death and in a ghost-story title about a letter from that realm.

2. Common pitfalls and similar expressions

• Afterlife, not a real location
  • It belongs to religious, folkloric, and fictional conceptions rather than ordinary geography.