Haiku is a very short form of Japanese poetry. It is as short a poetry as of just three sentences. The essence of Haiku is cutting. This is often represented by the juxtaposition of two images or ideas.
Modern Japanese Haiku are said by some to increasingly vary from the tradition of 17 on or taking nature as their subject. Despite the western tradition, Juxtaposition is still honored by the modern and the traditional haiku.
Often it is necessary to read them out loud in the same manner that an actor would in order to feel the emotion that should be conveyed through a line.