This is the holy string which was tied during the period when Acharn Heng and Luang Pu See was alive and it has been repaired many times for consecration ceremonies here.
There are altogether three levels of the the holy string as indicate at the arrow A are;
i)the upper level represents Yant Tai Saranakon,
ii)the center level represents Yant Krop Phet,
iii)the lower level represents Yant Maha Chakapat.
Four corners as indicate at the arrow B ;
Rachawa Chat Thong is the inner part of the white colour Phayant with Yant that was inscribed by LuangPu See of Wat Sakae.