Master of Puppets is the second song off Metallica's 1986 album Master of Puppets.
The song, following the theme of control with the rest of the album, discusses drugs and their effects. Addiction, the master referenced in the title, narrates the song, testifying to the destruction that comes from being under the control of drugs. James Hetfield explained the song "deals pretty much with drugs. How things get…
End of passion play, crumbling away
I'm your source of self-destruction
Veins that pump with fear, it's sucking darkest clear
Leading on your deaths' construction