A Guiding Light Lyrics

Lyric discussion by smiler 

Cover art for A Guiding Light lyrics by Smog

My interpretation is this is about a conversation/argument that he didn't want to have, probably with a girlfriend, the sort of conversation where raw, painful honesty comes out and it takes the whole day.

The hoped for guiding light is the insight into himself/the relationship, which doesn't arrive to his ultimate relief. After all, who really wants to see things in blinding white?

Then the aftermath, regret and self doubt? "Trying to prove wrong all the statements i made" sounds like he regrets being so honest and the pain it caused and so starts to try to explain how what he said wasn't true.