Lyric discussion by acb2monxw 

Cover art for Seen It All Before lyrics by Bring Me the Horizon

I feel like this song is about depression

Every day he is battling through this and everyday he is going through the same thing over and over again and he is stuck in a deja vu

Every second's soaked in sadness Every weekend is a war And I'm drowning in the déjà vu We've seen it all before

It's someone going through depression and every weekend he is trying to fight it and Is always feeling sad. and everyone has seen it before

My Opinion