There's no greater pain than pouring out your heart to somebody, spending all this time trying to understand the way they think, catering your message to that understanding....only for the message to meet a dead blank stare.
Have you ever found yourself in that situation? Speaking to somebody only to realize they missed your point entirely. Whether that applies to you in a romantic relationship, speaking in front of an audience, or marketing to the masses, you must take the focus off yourself and learn everything there is to know about who you're communicating to in order to be heard.
When you do that, when you hit the mark on what the other person wants to hear...needs to hear...you will find communication to be a much more rewarding and enjoyable experience.