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.