These stitching on this pillow are coplanar lines because they are all within the same plane/square (in this case the pillow). The three horizontal lines are inside the plane, and parallel as well. A pillow can be seen as a plane due to the similar shape, while the stitching, which is inside the pillow like the coplanar lines are in the plane, and this pattern is like the lines crossing the inside of the plane. These lines are also parallel, meaning that the three horizontal lines will always stay in the same direction. If this sound confusing, it means that the red square is the plane, while the there blue lines are the coplanar parallel lines. Pillows can be found in every house, apartment, hotel, or resident home/shelter. These can be related back to the hospitality industry because people volunteering can create and then give pillows like these to people around the world.
This image was found on the internet: http://homeinteriordesignthemes.com/wp-content/uploads/2009/08/banana-bark-pillow-detail.jpg