Cancer – A dream about cancer is hardly ever an indication that you have physical cancer. Usually it reflects an emotional toxin that is eating away at you, growing, and poisoning the rest of your life. It is helpful to notice the area of the body where the cancer is in your dream, as it may provide insight into the specific emotional issue. Alternatively, it could reflect a fear of death. As a death symbol, cancer is particularly powerful because it is an invisible disease. It represents latent mortality and the uncertainty of the future.