The world knows only too well that the price of love is life.
Or is it death?
Ask Romeo or Juliet, and they will tell you.
Those who love things they consider precious in life must be prepared to suffer for the sake of those things. And they will be called upon to make sacrifices as a price of the love they profess for those things.
That means whether it is an object, a person, an idea, a place, a nation, a country or a cause of some kind, if you love it, you must be able to cherish it, protect it, make sacrifices for it -- and invoke pain and suffering in doing so.
"No pain, no gain," is a rather well-known cliche. But there is a fair amount of truth behind that cliche.