The Bom-yeong-ru, another name of the Bom-jong-gak (Brahma Bell Pavilion) whose bell
sounds overflow the whole Universe like shadow, was originally constructed in 751 A.D.
and reconstructed in 1973 when Pul-guk-sa was restored to it's original form after
having been repaired and rebuilt several times. The pavilion was originally the
Brahma Bell pavilion, though a dharma drum is now place in it. One of the
characteristics of the Pavilion is that the stone pillar of the platform was
made imitating the shape of Su-mi-san (Mt. Sumerru), an imaginary mountain
considered to be the center of the world and the 33 heavens according to
Buddhist legends. It's other name Su-mi-bom-jong-gak (Sumeru Brahma Bell Pavilion)
derives from this architectural character.