It combines the two great essences of 'Ascension' and 'ether,' the transformation of spirituality is the pinnacle among the Nine Types.
In the Xiang Sword Theory, it's said: When wielded, it purifies the Soul, making an arrow motionless, quelling stray thoughts, the mind like still water, sensing life and death, understanding changes, Avoiding Death, chasing away calamities, traversing Yin and Yang, with endless marvelous uses...
In layman's terms, carrying this sword can accelerate self-awareness, stabilize Sage time, ignore many Heart Core erosions and temptations, maintain one's rationality, enhance intuition, improve perceptions, and instinctively receive warnings or sense danger, avoiding traps or ambushes.
As for 'traversing Yin and Yang,' it refers to instantaneously transforming one's material self into spiritual, or even further, concealing existence, breaking locks, becoming void...
