I came across this astounding bit while reading 'Siddhartha' by Herman Hesse.
When you throw a rock into the water, it will speed on the fastest course to the bottom of the water. This is how it is when Siddhartha has a goal, a resolution. Siddhartha does nothing, he waits, he thinks, he fasts, but he passes through the things of the world like a rock through water, without doing anything, without stirring; he is drawn, he lets himself fall. His goal attracts him, because he doesn't let anything enter his soul which might oppose the goal... This is what fools call magic and which they think is effected by demons. Nothing is effected by demons, there are no demons. Everyone can perform magic, everyone can reach his goals, if he is able to think, if he is able to wait, if he is able to fast.