I was asking about the grammar, not the logic. It is a metaphor and explaining it seems a ways of time. However, the point is that a person who had never been in love differs from a person who has. There is such thing as despair, and a person who is in love can experience pain and struggles her he or she will never completely give up and I mean mentally. He does not have this option, in other words, he doesn't remember what despair is. And I personally belive that giving up to despair is similar to a small mental death. One you say you can't, your can't. That's all.
So thank you, but a poem is a poem (:
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