outside balcony (attached with a large 5 or 7 step stair) connected from a small and short lean room connected from the north or south site of the house, and an inside balcony (attached with a 5- or 7-step stair) connected from the east door. Ancient Khmuic people believed and worshiped the sun spirit for safety and health. In the early morning whichever day the sky is clear, when the sun is starting to rise, Khmuic people opened the east doors of their houses to let the sun shine into their houses. There are three explanations for this directionality of house construction: 1. to expel devils, ghosts and bad spirits out of the houses (ancient Khmuic people believed that devils, ghosts or bad spirits fear sunlight); 2. to expel and wash out bacteria and any kinds of small insects dangerous to body and health; 3. Khmuic people also believe that the early morning sunlight is pure and fresh, so exposing one's own body to the early morning sunlight makes one's own mind fresh, good tempered, healthy and active at work. Nowadays, most Khmuic people ignore the beliefs and rules, and don't practice this way of building their houses. Roofs of houses are covered with wooden tiles or thatch. In cases relating to the harvesting season, Khmuic people also respect the sun as a symbol of clear sky or rain-less weather. During the harvesting season, sometimes the weather was abnormal and it rained, which caused a lot of damage to rice. So, when the rice ripens and its color becomes yellow or orange, and about the time of harvesting, Khmuic people held small rituals to sacrifice rice souls or spirits on the rice fields, mostly are up land rice fields or swidden fields (slash and burn technique which Khmuic people call “hre hngo” [hre̞ʔ hŋɒ̞ʔ]). In the rituals of rice soul sacrifices they hit bronze drum, which Khmuic people call "yan" (bronze drum) or "heurbang greh" (harvest gong) to beg the sun to shine well and prevent rain from falling down. In case it rains, they also hit yan and say some sayings to beg for the rain to stop. During the rainy season if it rains more than usual, Khmuic people also hit yan, and recite sayings to beg for rain to ease or stop for a little while. This is why in the 'Moun Greh ceremony, Khmuic people hit