This temple has Phra Nao, an ancient Buddha image; it does not appear who created it for how long. It is a very powerful Buddha image. It is revered and worshiped by the general public, especially in more than 25 local villages in Si Songkhram District, Na Thom District, and Ban Phaeng District, Nakhon Phanom Province, for hundreds of years. It is currently enshrined at Wat Phra Nao Sim, Baan Sri Weenchai, Sam Phong Subdistrict, Si Songkhram District, Nakhon Phanom Province It is always known that if there is any struggle in life; if you have respect, belief, and devotion to Phra Nao, then go to worship and ask for help, and you will be successful accordingly, every time. But do not act like a challenge because it is strictly prohibited. In addition to being unsuccessful, it is also a dangerous to you. Phra Nao is a Buddha image in the attitude of subduing Marasitting cross-legged of Lan Chang era art, sandstone texture, later covered with cement. And, there are 2 more majestic Buddha images, namely Phra Kae, Phra Bang, enshrined in Sim Phra Nao since the Tri-Lao culture period, around 2100-2200 B.E. When the Sims were restored in the early days, around 1898, many people saw many colored glass beads (Chapphanrangsri) leaving Sim Phra Nao, and floated to south and north, and return to the sim, continually. It is believed that this is a miracle showing the appearance of the Buddha's relics, and the sacred things that heal. And besides that, there are also gods guarding them so that no one can trespass and search for ancient artifacts in that area because in addition to gaining nothing, it is also a danger to oneself