I found this book, and the entire Earth Life Series, to become powerfully transformative. Written simply and lovingly, these teachings ring as true today since they did at publication in 1986. These are the same truths every master from every era taught, updated for the modern time. They deal specifically because of the everyday thoughts and circumstances we face now. Particulate smog is a mixture of solid and liquid particles which are suspended in mid-air that you just breathe. It is best to classify air particles from the aerodynamic properties as these properties determine the removal of them from the air, and where they deposit inside your breathing. Van Gogh began his work relying on the Dutch Masters. He was intrigued by the Masters' ability to have fun with shadow and lightweight. He also found an association in the painting of common events and/or people. For instance, The Potato Eaters captures a small grouping of peasants sitting yourself down for any meal. The painting is dark, yet, light radiates from your faces.