You could be dreaming about a deceased loved one if you think that they are at peace even though they have passed away. It is normal to miss somebody and this simple act of acknowledgement may help to ease the pain.
Dreams can provide a sense of closure by letting someone know they are not abandoned, forgotten or alone. When the dreams involve a loved one who has passed away, there are feelings of remorse which is replaced with wisdom and grace.
The loss of a loved one is distressing, causing one much more pain and strife than usual. Often dreams about them involves their death, this should not be taken as a sign that the deceased has negative feelings for the dreamer. This is an understandable way for people to work through the grieving process and underlying anxieties.