Becoming invisible or appearing out of nowhere suggests something emerging from or relating to the unconscious, being forgotten; hidden influences, as when touching dimensions of...
To dream that you are killed (or being chased by a killer) foretells that enemies are working against you....
(Voice) Hearing the voice of an invisible caller admonishing, commanding, forbidding, blessing, or reprimanding the person seeing the dream means exactly what one has heard and has...
You being killed can represent: A feeling or fear of ill will, victimization, manipulation, or someone or something taking power away from you (physically, emotionally, or mentally...