Lyric discussion by rach_87 

Cover art for Aisles of White lyrics by Butterfly Effect, The

I don't know if I'm way off track here but i think that it's about someone's struggle with life and feeling like taking their own life (references to the light, sinking ship) and someone arriving in their life finally and them finally realizing that they have something to live for. In a way it similar to what other comments have said but just my take on it.