Rabbi Yochanan said: “At a time of finding” [in the pasuk, “For this let every devout one pray to You at a time of finding” (Tehillim 32:6)]: this is burial. Rabbi Chanina said: What is the verse [that shows it]? “Who rejoice to exultation, who are glad when they find a grave” (Iyov 3:22). Rabbah bar Rav Shila said: This is what people say: A person should ask for mercy [that he have] peace even until the last clod [of earth thrown on his grave].