From "Bones"

A sort of loosing so much control of personal happiness is unbearable.

You love someone,you open yourself up to suffering,that's the sad truth.

Maybe they'll break your heart,maybe you'll break their heart and never be able to look at yourself the same way.Those are the risks. That's the burden.

Like wings,the have weight,we feel that weight on our backs,but they are a burden that lifts us.

Burdens allow us to fly....