“On the night before the big operation, let your movements be guided by the sun. Study the relationship between light and life. Note that the plants absorb the deep red but reflect the infrared. When the agave plant is fully grown, it sends out a giant trunk the size of a telegraph pole. This signals that the plant is dying. Do not touch it with anything except your eyes but leave it as it is until the next day, the day of the operation. Cut it when the sun begins to rise in the firmament. You take the pole to a metalworker, who must forge the steel so sharp that it can cut a victim’s throat. Attach the steel as covers to the ends of the post. You then obtain a magnetic stone, which you heat up to magnetize the two steel points. Notice that the surroundings have started behaving strangely. The sun is a yellow metal disc. Hanging in the room like a brass-shining light. A slowly rotating gold coin. The invisible light is filtered into the visible. The solid ground becomes like the sea. If you have done everything correctly, your body will be unstable, silent film-like. Let the flat sun fall on you.”