This guide hopes to explain why. Hopefully balanced, this will both help you choose the class with a long term view and appreciate it more if you play another class.
Clerics heal and buff others.
The flip side of the coin is rather brighter however and to me more than makes up for this. This is the reason why you clicked that button back at the creation of this current incarnation. With heals , we can extend the lives of those that protect us. By healing them , these other warriors reward us with lots and lots of experience. We are the masters of the heal bar none.