We are accustomed to thinking about interior design in terms of periods, colors and styles, but there are some thematic connections that persist from one period and style to the next - such as the color-and-texture combination of white and wood applied in a dining room, an intentional juxtaposition that has worked for interior designers time and time again.
White speaks to simplicity and (since the dawn of modern architecture) to cleanliness and health - certainly good associations to have with the place one eats. Wood, however, is comforting and visually variegated - it brings another level of texture to the scene as well as warmth.