Horizon
There is a tsunami coming up over a cliff made of dirt. You can see this happening very far away because it's right on the horizon.
Picture the tsunami breaking over the cliff on the horizon. It would be beautiful if it wasn't so frightening.
がい
はて
None
You squint into the horizon and see something else. There's some guy (がい) up there. And he's... he's being swept away by the tsunami. The guy disappears into the horizon. The guy is gone.
You wonder who that guy was. You wonder why he was there. You wonder if he's still alive out there, past the horizon.