When I was younger, I learned a lot of stuff, like the role of colors in the casting of spells. Green for fertility and prosperity, red for passion and energy, white for purity, black for vengeance, and so on. It could be that the color doesn’t matter at all – but if I expect the spell to work because of the color used, then that color is important. If I don’t believe in it, the spell won’t ever get off the ground.’