Solitary days and humble nights

One question

Love can heal the deepest of wounds and scars.
It can also inflict the deepest of wounds and cause scars.
Love is a double bladed sword.
Just to feel love for someone can heal our soul.
Even if they don't love us back just feeling love for them can heal us.
For he dried her tears and promised to love her for all of eternity.
So she would never cry for him again.
But be warned my brothers and sisters.
Betrayal is worse than death, because you still have to live.
It is said that when two souls love each other you can cut one and the other will feel more pain than the one being cut.
Love is a powerful force.
You can't see it but you can feel it and we are all bound by it.
The simple words "I love you" can change a persons entire being.
Trying to defrost a frozen heart is risky.
Because you might freeze your own.
Cutting a stone hard heart can be painful.
Because you can end up not being able to feel anything.
All of this leaves but a single question.
What is Love?