"Enter Sandman" was the first hit single from Metallica and remains one of the most popular Metallica songs of all time. It employs what has been described as a "wall of guitars"— three rhythm guitar tracks of the same riff played by the same guitarist to create a "wall of sound." The lyrics have to do with going to sleep and the fears connected with that. The title refers to the Sandman, a character from Western folklore who makes children sleep. There are some words from a lullaby, and from a classic bedside prayer for kids. Enjoy the video!