A haiku is a short poem originally invented in Japan many hundreds of years ago. Since then it has evolved into many different forms. You can find many hubs written on this subject (including mine!) and all strive to capture the essence of this beautiful poetic form.
The classic haiku have 17 syllables in a 3 line form, 5-7-5.
It is poetry
we journey towards. Like birds
fly to horizons.