What a marvelous gift God gives us as Christians -- that we do not have to grieve as those who have no hope. As the passage about Christ's coming reminds us in 1 Thessalonians 4, we can "comfort one another with these words."
One of my favorite "words" from God about this subject is in 2 Corinthians 5:8: "We are confident, yes, well pleased rather to be absent from the body and to be present with the Lord." Indeed, My first thought and words when she took her last breath was, “Mama! What are you seeing now?! I’m so happy for you!” Yes, there are and will continue to be tears, but what a blessing that we sorrow not as those who have no hope, but rather in full hope of what lies in store for each of us who love the Lord.