Kurenai: (lifting her steaming flask) You see, Little Alex, alchemy is not the mere transmutation of lead into gold. It is the science of the purifying soul. What you see rising here is not steam; it is the "sulfur" of the philosophers—the desire of matter to rejoin the light.
Pixel: She is right. It is a bridge between the binary and the infinite. We seek the point of balance where the finite touches the eternal. We do not change the metal; we change the gaze of the observer so they may finally see the unity of the All.