What dance photography means?

Sometimes I've asked this question to myself.Probably the answer is that I like to challenge everytime I shoot with my skills.In dance photography you've just a while to capture the right moment,you've to be a good photographer at every single click,otherwise you loose an action.So it doesn't matter what you did in the past,you're judged at any new event you're invited to shoot.
Moreover it means also to understand dancers behaviour,in few words, it mens to dance with them