Bob Marley - Get Up, Stand Up Lyrics Meaning

I believe it stands for what you believe in
(especially when it comes to animal and human rights), and not conform to outdated and barbaric "traditions" nor ideological dogma from the Dark Ages. Just like Bernie Sanders, Bob Marley's song is encouraging people to "think outside the box" and not fall in line and walk lock-step to the status quo. Overall, the song is about non-conformity, individuality, freedom, and the rights to life, liberty, and the pursuit of happiness, the right to be yourself and not to be molded into something and/or somebody you choose not to be, nor to be expected to conform to what everybody else does.