guard stone in thuparama temple entrance, snake god and two dwarfs carved in one stone

ancient mura gala site anuradhapura archaeology archeology architectural architecture bahirava bahirawa buddhist symbols temple carved concept dwarf entrance guard stone guardian heritage history kingdom landmark monastery muragala naga raja nagaraja old polonnaruwa pot abundance protection rajarata religion religious ruin sacred sculpture snake god sri lanka stairs statue touristic traditional unesco wall world yaksha thuparama two dwarfs one