Lyric discussion by mus400 

Cover art for Time lyrics by Sarah McLachlan

i bet this one is personal to her - given that it was written in 2003 i am also in agreement with tiannaos and betting this is about her relationship with her (ex) husband. I think the song (much like the rest of the album) is significantly more just passive acceptance of something that is simply not working. She is looking for the courage to leave even though it will be incredibly difficult.