‘Must’ is a word you yourself own and is defined by your thoughts. It has a conclusion you choose to create when you follow through. ‘Should’ is a word in the brain of others telling you what to do. Let the SHOULD go and focus on the ‘must’ with the knowledge that internally it is YOUR choice when and if you take that path. It creates a more beautiful decision. Your own!
To me this saying is beautiful because it tells me if I really want to continue to grow I must decide to do what I think I cannot. And the feeling of accomplishment will be MINE not theirs. 🙂