Lyric discussion by brokenxwrists 

Cover art for Light Up lyrics by Tegan and Sara

the way i see it, it's about her mum and having to grow up and raise them (tegan and sara) at such a young age and making sure that they were alright and safe, regardless of what other people said about her or them, or the situation or whatever.

and Sara is contemplating over what her life would have been like had she been through that while giving credit to her mum for doing what she did and getting through everything with them because well, raising kids on your own is by no means easy.

"What would I do differently With two kids on my hip Let them say what they will, 'cause they will anyhow"