Where do Mexicans believe where their ancestors souls rest?

Many Mexicans believe that their ancestors' souls rest in a sacred place known as "Mictlán," which is the underworld in Aztec mythology. However, during Día de los Muertos (Day of the Dead), they honor and celebrate their loved ones by creating altars and offerings, inviting the spirits to return and join the living. This belief reflects a deep respect for ancestry and the enduring connection between the living and the dead.