The following quote is a part of the song "Bring me to life" by Evanescence. Would you please tell me what it means? (I'm aware that not all lyrics are necessarily grammatical, yet was wondering how native English speakers understand it)

Bid my blood to run

Before I come undone

Full lyrics: http://www.azlyrics.com/lyrics/evanescence/bringmetolife.html

Video music: http://www.youtube.com/watch?v=3YxaaGgTQYM