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The song is saying you should live life, find out what you want to do in said life, and do it. If you let it pass, it will 'slide' away from you, and you'll lose chances to make life great.
The song is saying you should live life, find out what you want to do in said life, and do it. If you let it pass, it will 'slide' away from you, and you'll lose chances to make life great.