Here's the Spiral cross thing part:
When the spyral pushes the crossed lines, the lines start moving but that is not what the symbol said. Nevertheless, the symbol was the other way around. The lines where cuting the spyral. If a moving spyral is cut by the lines, the movement and the spyral itslef will be nulled. If used, this technique can "cut" wind. A weapon used to cut wind is indeed something unusual and powerful. But can it stop straight wind or just whirlwinds? If it indeed works even the vortex of Liquid Dust creatures could be stopped and that being of hatred will never banish you n places like this one again... If it indeed works... In the distance, the three white dots appear once more. You can hardly notice them. You cauciously move towards them and, as you are near enough to distinguish their shape, a black veil suddenly covers your eyes, you slip and hit your head.
Also Ren says that the couplet on the Willow's walk suggests that Willow is not dead or it might be a pun on the Willow tree there.