I watched this TV series in junior high school, and I liked the theme song very much!
His meaning of "shedding tears is better than bleeding" here should be: "shedding tears" represents weakness and powerlessness and cannot be called a hero; And "bleeding" is the spirit of being brave, daring to fight, fearless, willing to bleed and unyielding.
That is to say, when "tears" are not as good as "blood", then each of us can choose "blood" instead of "tears", and then "everyone will call himself a hero"! This should be an inspiring word, inspiring everyone to have great potential, and everyone should face it without escaping, so that everyone can become a hero!
The above personal views are for reference only! !