about haiku
Haiku is one of the most important modes of Japanese poetry, a late 19th century revision by Masaoka Shiki of the older hokku (??), the opening verse of a linked verse form, haikai no renga . A traditional hokku consists of a pattern of approximately 5, 7, and 5 morae, phonetic units which only loosely correspond to the syllables of Western languages. It also contains a special season word (the kigo) descriptive of the season in which the hokku was set. Hokku often combine different elements into a unified sensory impression, with a pause (the kireji or "cutting word") at the end of either the first five or second seven morae. Although rarely broken by Japanese hokku writers, these rules are often broken in the later, more "free-form" haiku movement, both in Japanese and in other languages.
Contemporary English Language Haiku
While traditional hokku focused on nature and the place of humans in nature, modern haiku poets often consider any subject matter suitable, whether related to nature, an urban setting, or even a technological context. While old hokku avoided some topics such as romance, sex, and overt violence, contemporary haiku often deals specifically with such themes.
Traditional hokku required a long period of learning and maturing, but contemporary haiku is often regarded as an "instant" form of brief verse that can be written by anyone from schoolchildren to professionals. Though conservative writers of modern haiku stay faithful to the standards of old hokku, many present-day writers have dropped such standards, emphasizing personal freedom and pursuing ongoing exploration in both form and subject matter.
In addition to the spread of haiku, the late 20th century also witnessed the surprising revival in English of the old hokku tradition, providing a continuation in spirit of pre-Shiki verse through adaptation to the English language and a wider geographic context.
Due to the various views and practices today, it is impossible to single out any current style or format or subject matter as definitive "haiku." The term has broadened greatly in modern usage to cover nearly any short verse. Nonetheless, some of the more common practices in English are:
* Use of three lines written in 5-7-5 syllables
* Use of three (or fewer) lines of no more than 17 syllables in total
* Use of metrical feet rather than syllables. A haiku then becomes three lines of 2, 3, and 2 metrical feet, with a pause after the second or fifth
* Use of the "one deep breath" rule: the reader should be able to read the haiku aloud without taking a second breath.
from the Wikipedia entry on Haiku