From wikipedia:
More than simply putting flowers in a container, ikebana is a disciplined art form in which nature and humanity are brought together. Contrary to the idea of floral arrangement as a collection of particolored or multicolored arrangement of blooms, ikebana often emphasizes other areas of the plant, such as its stems and leaves, and draws emphasis toward shape, line, form. Though ikebana is a creative expression, it has certain rules governing its form. The artist's intention behind each arrangement is shown through a piece's color combinations, natural shapes, graceful lines, and the usually implied meaning of the arrangement.Another aspect present in ikebana is its employment of minimalism. That is, an arrangement may consist of only a minimal number of blooms interspersed among stalks and leaves. The structure of a Japanese flower arrangement is based on a scalene triangle delineated by three main points, usually twigs, considered in some schools to symbolize heaven, earth, and man and in others sun, moon, and earth. The container is a key element of the composition, and various styles of pottery may be used in their construction.
The spiritual aspect of ikebana is considered very important to its practitioners. Silence is a must during practices of ikebana. It is a time to appreciate things in nature that people often overlook because of their busy lives. One becomes more patient and tolerant of differences, not only in nature, but also in general. Ikebana can inspire one to identify with beauty in all art forms. This is also the time when one feels closeness to nature which provides relaxation for the mind, body, and soul.
