The injuries of the heart are the easiest to make worse and the hardest to fix.
The reason is quite obvious (for those who don't know I will tell you) The heart is nothing but a well, and the water are the emotions that you have at that time in your life
Love, compassion, sympathy, friendship, kinship, romance and protectiveness are the waters you want inside your well, for they will make the people around your well happy, healthy and most of all kind with your well.
Hatred, jealousy, envy, anger, lust for power and ignorance are the types of water you DON'T want in your well, for those who drink of that water shall become nasty, vile, aggressive, incencitive and violent with those around making the life around the well nothing but a living hell.
Here are the types of injuries the well can suffer.
Gaseous types: are always the easiest to fix for those types never go deep into the well, these types of injuries are trivial to the well and don't affect it
Liquid types: are not that easy to fix, for they will intoxicate the water inside the well and make it go toxic; hatred, jelousy and greed are the main causes for the water of your well go to toxic
Solid types: these are the hardest to fix and sometimes they simply can't be fixed at all. The causes of those types of injuries are betrayal, abuse and being distant. For those injuries are ice that will (and normally shall) turn the water of your well into ice, making life impossible around the well.
What do you think Cpt. Chenbeard of the Black Fedora Pirates?