Looking at the house, Feng Shui, what is an arrow?

"Arrow evil spirit" is a geomantic term, which refers to the sharp angle outside the house, such as an arrow, commonly known as "arrow evil spirit". If there is an anti-bow road or anti-bow bridge in front of the house and there is a tall flagpole nearby, which looks like an arrow on the bow, and this "arrow" is facing the direction of the house, it is "arrow evil". This kind of Sha Qi is extremely unfavorable to residential feng shui, and it also makes residents vulnerable to injury or mass annihilation.