Phra Yaa Naak has appeared in the Thai literature as a big snake which live in the Khong River, the border of Thai ,Lao and Cambodia.

Phra Yaa Naak is a symbol for wealthiness, luck and greatness.Some believes that Naak is a god of the river,some said Naak is a god of the sky.Besides,It has obviously appeared in the Buddism's bible and also Thai literature for ages.

The story of Naak appeared in the before Buddism's era in the south of India.When Indian sacred snakes and believe that snakes have a strong power espically the big one.

However,the westerner country may think different that the big snake is a sigh of evil and bad luck.