In traditional calligraphy, what is the basic purpose of the pen angle?

The basic purpose of the pen angle in traditional calligraphy is to enhance letter shape. When a calligrapher adjusts the angle of the pen, it allows for greater control over the thickness and slant of the strokes, which is essential for achieving the desired aesthetics in the lettering. Different angles can produce varying effects; for instance, a steeper angle may produce sharper, more dynamic strokes, while a shallower angle might create softer lines. This versatility helps in defining the character and style of the lettering, making it visually appealing and ensuring that the letters maintain their intended forms. The relationship between the pen angle and the resulting letter shapes is a fundamental aspect of calligraphy that influences the overall composition of the work.