wooden sticks plunged into the crevices between rocks on a cliff, a superstition to support the mountain with the meaning of blesi

area asia attraction between blesi blesing changsha china cliff cliffs crevices destination forest heritage hiking holidays hunan into jammed landmark landscape meaning mountain national nature outdoors park peculiar phonomenon plunged province reserve rocks scenic shan spectacular sticks superstition support tianzi tourism trail travel trip unesco unique wooden wulingyuan zhangjiajie