The phrase “Rest in Peace” (Latin: Requiescat in pace) has been a fixture on Christian gravestones since the 18th century. Its meaning is apparent; let the soul of the person buried here find peace in death. Three words, easily said and seemingly innocuous, yet they have profound implications. There can be no rest without work; the notion of resting in death implies that life is some sort of toil. Then there is the peace aspect of the thing.