Symbolically, dreaming that you are paralyzed means you are feeling helpless or pinned down in some aspects or circumstances of your waking life. You may feel unable to deal with a situation or change anything. Alternatively, the dream suggests that you are feeling emotionally paralyzed. You have difficulties expressing your feelings.
To dream that you have been killed suggests that your previous actions were disconnected from your emotions and conscience. The dream refers to drastic changes that you are trying to make. There is a characteristic that you want to get rid of or a habit that you want to end within yourself. Killing represents the killing off of the old parts and old habits
To dream that you are possessed represents your state of helplessness. You feel you are not in control of things.
Nightmares..