Remember this scary experience from childhood?

You’re drowsing in bed at night. You hear a sound. It’s not loud but it’s unfamiliar. Your heart starts to beat faster. You think you should go investigate but you’re scared. What if it’s something really bad?

Suddenly, the sound is gone, and the air feels familiar again.
It’s like a magician appeared and waved a wand. You feel calm and safe. Your heart rate returns to normal.

“How did that happen?” you wonder. The magician eyes you slyly and says, “Sleight of hand, my dear. Anyone can do it. Do you want me to teach you?”