What is the song weightless by all time low about?

"Weightless" by All Time Low is about feeling a connection with someone on a different level, with whom one can relate better that with anyone else. All-Time Low's lead singer Alex Gaskarth said in an interview that he wrote the song when he first became a full-time musician while his brother stayed back home for college; and how, even during difficult periods, "there's somebody out there on your wavelength you can get away with shit with.