Bury
The dirt next to your village is where you bury the dead. People don't live forever, so every village has a patch of dirt specifically used for burying dead things.
Imagine the village where you grew up. Can you see the dirt area where all your ancestors were buried?
まい
う, うず
None
You don't just bury dead relatives here. You also buried your dead pet uni (う) in that dirt. You thought having an uni as a pet would be a good idea. Too bad uni need water to survive.
Imagine crying as you bury your pet uni. Your tears can't save it now. (Though it is a bit ironic, since it needed salt water.)