The light bulb symbolizes our thoughts and how over-thinking can kill us.
This is actually genius.
One of my favorite pictures on tumblr
My thoughts are slowing killing me.
Each day my thoughts are killing me.
bringing my old post backkkkk
I can’t handle this because this is so fucking relevant right now
Who says the light bulb has to symbolize our thoughts? It could symbolize anything that could kill us or take away our humanity, like technology (hence the light bulb) or moving past ignorance (seeing the light). Perhaps the creator meant to portray our thoughts but perhaps not. It means what the viewer sees.