In my opinion this lyric means that someone is looking for their dreams , that thing that makes them tick and feel truly happy , because they lost it some where. Maybe they lost it because they went through some tough things , I believe that is what the broken shards of glass from the broken light bulb means. The filament is something that needs to work if its gonna bring light , without it , you gotta be strong and keep your life going hence the " lit the life you want" line.
So an interesting sentence I have heard in a song is by Matthew Good . The songs called Alert Status Red and the lyric goes like this
" In the wilderness the only place to find freedom is in the dictionary ,under F."
I chose this lyric because I love the meaning behind it and the song itself as a whole but I personally feel this sentence is extremely relevant and kinda funny as well as true.
The lyrics I used talks about how we are told we are free as people , but in truth we arent exactly free, even in the wilderness where we are supposed to be absolutley "free" were still not. Our society is to wrapped up in materialistic items that we've lost all respect for nature and it's beauty as well as the fact we are wearing blinders to what is really corrupt and wrong in our society. That freedom is no longer a real thing other then a word in the dictionary.