Lyric discussion by Apachedino 

Cover art for Simmer lyrics by Silversun Pickups

The feelings of lethargy and hopelessness from the depths of a depression. He knows he is in it and though it doesn't feel like it will end he knows it will, by either someone pulling him out or another "light." He wants to be proactive and is searching for a way out, but coming up empty handed, frustrated to feel this way and not really know way. I think this captures the feeling well. Badass song aside from the lyrics too.