1. A euphemistic expression referring to death or the state of being deceased, often used in religious or formal contexts to describe peaceful death or the afterlife
May he find eternal rest in heaven.
Que ele encontre eterno descanso no céu.
2. A state of permanent peace or relief from suffering, particularly in relation to someone's passing
The family wished eternal rest for their beloved grandmother.
A família desejava eterno descanso para sua querida avó.