Vision: Seeing a carcass in a rotting state can evoke disgust, dislike, or grief. Either an event provoking such a response is going to happen soon, or the dream is suggesting that letting go of a situation or a person is long overdue. Dragging a dead corpse in a suitcase: you are still earning around things from the past—things that “died a long time ago,” or your conscience is bothering you. Looking at a dead body: old problems will be solved successfully.
The dream also suggests that a wedding or birth is imminent. Seeing yourself as the cadaver: a great burden has been lifted, you will live to a ripe old age. See Skeleton.
Depth Psychology: A cadaver represents past issues that need to be dealt with.
The corpse you’re rigidly holding onto may be old conventions. Have your feelings for another person turned “cold”? Are you afraid of Death? Do you wish that someone else were dead? A rotten cadaver—in the context of other images in the dream—indicates that a current situation is at a “dead end,” but that something new will come along.... Dreamers Dictionary