Something you hope to do in your life.
I grew up in a house where my mother told me I could do anything I wanted, and in reality this isn't true, but it was a nice gesture. Kids don't need to know that the world pisses on you as soon as you walk out the door, they don't need to know that people will try to cut you down in a sad attempt to bring themselves up, and kids don't need to know that they probably won't be able to do everything they want because money isn't as easy to come by as you thought and even of you're qualified someone is probably more qualified so you're basically screwed.
I grew up wanting to be a veterinarian, an astronaut, and a professional singer. I wanted to have a dog and kids and a big back yard for them to play in. I wanted to be a teacher. I wanted to be a wife.
Now, I just want to be alone... sort of. I want to be able to do what I want without having to rely on anyone else. I'd still like to get married, finding that special someone willing to spend the rest of their lives with me (and who I am willing to spend the rest of my life with) would be nice, but I'm to the point where I've realized that happiness is my own thing, no one can make me happy, therefore I can't rely on anyone else to do it.