Wikipedia
Trailokyavijaya
Trailokyavijaya ( Vajrayana, ch : 降三世明王, Xiángsānshì míngwáng, ja : Gōzanze Myō-ō;) is the King of knowledge having conquered the three worlds, one of the five kings of knowledge of Buddhism. His mission is to protect the eastern part of the world.
In general, the three worlds represent the world of desire, the world of form and the formless world; some interpret this king of knowledge is called so because he wants to defeat the supreme leader of the three worlds, ( Shiva); The most logical explanation reveals that the three worlds denote the three poisons: greed, hatred and ignorance, three trends that humans can not conquer during the past, present and future that the king hoped to help people eliminate.