It is said that the practice of flower arranging was originally used in Japan to pay tribute to the gods, and the floral arrangements were therefore considered sacred. In Japan, historical records documenting the appearance of traditional flower arrangements date back to about 500 years ago. It was in the seventeenth century that followers of this new form of artistic expression started creating the rules leading to the formation of what would eventually become the disciplinary art that is now known as Ikebana. The diversity of forms and methods that were developed over time made Ikebana a much more sophisticated form of art. In the end, Ikebana has become a discipline where the stage for the artistic expression is set by the harmony achieved through the combination of natural materials (flowers, stems and branches), the container, and the lines and forms that characterize the art of Japanese flower arrangement.
Line direction is where flowers placed in the design giving the arrangement vertical direction, horizontal direction, or a diagonal line. Line materials also place curves into the flower design. Without line in a design, we would not have any fluid movement. Our eyes would be stuck and not circulate throughout the design to see the whole image we are trying to create.