Okay, I've heard of this concept, and one excellent example of this is Silent Hill in the Silent Hill games. This concept is the setting can become a character if described enough. I want to utilize the concept in a story called, "Gasmask," where the setting is our world with chemical weapons polluting the air so heavily that characters have to wear a gasmask everywhere outside. So, I was wondering, any tips for this? Something specific I should be going for to give the setting more personality? Or just plenty of good descriptions and imagery?