"Loss" is the theme in this tale of two children, Haruka and Yukari, who are reunited at a summer festival. After learning that the Lantern Festival is a time when those who have passed away return to visit the living world, Yukari heads off to the summer festival in hopes that she'll be able to see her friend Haruka again.
The Lantern Festival is when 
people who have passed away
يدور مهرجان السراج حول عودة الأشخاص
Beim Laternen-Festival kommen Leute,
El obon es el día en que los fallecidos
El obon es el día en que los difuntos
L’O-Bon, c’est le jour où les gens…
Il Festival delle Lanterne è la notte in cui
 quelli che non ci sono più
O Festival das Lanternas acontece 
quando aqueles que partiram