Haiku is an ancient Japanese form of poetry.
In its ancient form haiku has a strict form. It has three lines of five, seven and five syllables. There should be some indication, in the words, of the season, Summer Autumn Spring Winter, that is the time in which it is set. The topic is usually Nature in one form or another. The last line should contrast with the rest of the poem, and should follow some indication of a break in the theme. That is, there should be two contrasting themes that use the juxtaposition to highlight the contrast between them. The haiku should be self-contained and need no outside explanation or reference to make its point.
These rules are sometimes broken in modern haiku, although the form should be followed fairly closely.
My haiku take the 5-7-5 form but tend to vary a bit in other ways. Some have the seasonal reference, some don&...