We all need rest, we all have been tired and worn thin by life, struggling each day to drag ourselves through to the next. Naomi herself had experienced a lot of suffering and felt overwhelmed by life. She was also aware of Ruth and uncertain future, desiring that she would find the rest of a husband, the safety, security, and future. God's desire for each of us is not that we would crawl through life but that we would experience His life giving rest.