镇物

fáng huǒ zāi de zhèn wù

防火灾的镇物

talisman to protect against fire

táng dài shí zhè sān gè zì yǐ jīng bèi xiě zài shí tou shang bèi zuò wéi fáng zi de zhèn wù ér shǐ yòng

唐代时，这三个字已经被写在石头上，被作为房子的镇物而使用。

During Tang Dynasty, these three characters have been carved on stones and were used to protect houses from evil things.