Lyric discussion by MapMistress 

Cover art for When The Body Speaks lyrics by Depeche Mode

It's about a masochist needing physical pain.

"To the soul's desires The body listens What the flesh requires Keeps the heart imprisoned"

A masochist's flesh requires physical pain.

"What the spirit seeks The mind will follow When the body speaks All else is hollow"

A masochist's body speaks for physical pain.

"I'm just a slave here At the mercy Of a girl"

And he's praying to a woman. He's taken the pain praying for something else. "Oh I need your tenderness Oh I need your touch Oh I dream of one caress Oh I pray too much"

And I guess he's not getting what he's praying for. ;-)