Whether we are experiencing grief or comforting someone who is grieving, it is always good to keep in mind that people mourn in deeply personal ways. As we “are willing to mourn with those that mourn … and comfort those that stand in need of comfort” (Mosiah 18:9), we can become more sincere followers of Christ and enjoy a greater abundance of the Spirit. ~ Stephen Havertz
Please read this article by Stephen Havertz that answers the questions...
What Can I Say? What Can I Do?