The 'three non-natures.' In contrast to the 'three natures' of 'attachment to pervasive imagination'， 'dependent arising'， and 'perfectly accomplished reality'， these three non-natures are established from the point of view of the lack of self nature of elements. Thus， this is an explanation from the standpoint of emptiness. （1） 相无性xiangwuxing . Form， appearance， or seeing is unreal， e.g.， a rope appearing like a snake. （2） 生无性shengwuxing . Arising， existence， has no self nature. Arising appears dependent upon causes and conditions， and its existence is provisional. （3） 胜义无性shengyiwuxing . The non-nature of ultimate reality.