Regardless of your religious faith or spiritual beliefs, there have been studies done that show prayer can aid in the grieving and healing process. So if you believe, there is power in prayer. Pray for yourself, for strength to endure the pain of your grief, pray for your loved one who has passed, pray for other family members affected by the death of your loved one.
If you believe, then you will be comforted by the power of prayer. If you belong to a church, ask that your church pray for you and your dearly departed.
If you believe then you will be comforted to better days ahead.