A grave in dreams can represent your digestive and elimination system. The color brown and the earthiness of the burial place are sufficient to indicate the digestive system. However, a morbid symbolic link exists because both the digestive system and a grave are used to receive dead meat.
Attending a funeral in a dream is about letting go of the negative influence of either the person whose funeral you are attending, a parent or other significant person of the same gender. This influence is holding you back from doing something that will help you develop in a positive way.