Actually, the greatest effect of "Binding Qingsi" is to help people break through to the Heavenly Origin. Using it on him was somewhat of a waste for Situ Wan, but it can't be said that she intended to use it on him. She planted "Qingsi" in him herself, but if not triggered, he probably wouldn't notice it for a while.
Besides, Lin Miao doesn't need external force to advance to the Heavenly Origin. As long as his cultivation reaches the required level, he is confident he can advance directly.
However, the appearance of Situ Wan at least saved him time.
As for Lien Yurou, her cultivation is not high, and the effect of her Virgin Yin is useful to him, but relatively speaking, it is certainly not as good as Situ Wan's.
Lin Miao discovered that the higher the cultivation level of a woman, the more pure the energy contained in her Virgin Yin when she retains her virginity, and the first experience of dual cultivation offers the greatest help.
