so when they were writing the black parade they stayed in this place that was famous for being haunted and mikey, the bassist, would have night terrors so bad he would sleep in gerard's room, the rest of the band would also see things in the house, per the song Sleep, which is also based on that experience
so thats where:
I see you lying next to me
With words I thought I'd never speak
Awake and unafraid, asleep or dead
comes in, because gerard would have terrible dreams and then be relieved when he saw mikey was ok when he woke