You are what you eat, think, see, and do. If you eat unhealthy junk food or heavily processed foods, you are polluting His Temple and He cannot shine through you. If you constantly think poisonous thoughts, you cannot hear Him speaking to you, nor can you reflect His thoughts and His Love to those you encounter. If you see a world of evil and believe that this is truly how it is an not an appearance, this reflects how you feel about yourself. If you commit acts that are harmful to others, you are really committing those acts on yourself.