Ikebana flower designs tend to be minimalistic; the key to achieving their distinguished beauty is not in any particular single component, but rather the balance between all of them. The key is finding a harmonic balance between all the elements of expression (the container and the flowers, stalks and leaves), their characteristics (such as color, texture, form and the season they represent) and the space where the flower arrangement is expected to be used.
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.