The samsara means the indefinitely repeated cycles of birth, misery, and death caused by karma to which life in the material world is bound. I thought this word fits the meaning of 轮回循环 well, but if you find otherwise, feel free to change it please.
Although I have no idea how you managed to crush those evil spirits... as culpable as they are, you should not simply annihilate them...But-What happened to Reimu...One should keep on staying in hell till it can fully comprehend its crime.Why should I care?In the end, one has to be enlightened to get away from the circle of samsara...