Mental real estate describe the amount of space one has in one's mind, the availability of space in one's mind and how much of it is taken up by something. Mental real estate is the most valuable real estate in the world. There is nothing more powerful than taking place inside one's mind. When you focus on my voice, can you feel how my words are invading your mental space. When you listen to me, you are, in fact, letting my voice talking over your mind.