Head line. This line starts at the edge of the palm under the index finger and flows across the palm towards the outside edge. Often, the head line is joined with the life line at inception. Palmists generally interpret this line to represent the person's mind and the way it works, including learning style, communication style, intellectualism, and thirst for knowledge. It is also believed to indicate a preference for creative or analytically approaches to information (i.e., right brain or left brain).