Losing a loved one brings a deep sadness and most likely your dog will understand when you are mourning and will go through a grieving process of his own. He may become clingier or more attentive. There is no doubt that a dog in this situation would be feeling sorrow, perhaps depression, and a deep sense of loss.
How much dogs can understand about death is still not fully understood. There have been many stories of pets grieving for their dead owners, and many have kept up guarding next to their owner’s grave or previous home.
Yes there is sorrow, but perhaps something more positive than grief. Because dogs do not have the knowledge that death is forever, at least there is the option to hope – a hope that their loved one might come back again.