Personally, I think it's a great idea. And I keep on learning new ways to do it.
You know the old jokes in cartoons, when you get a look at a character's brain? There are all these little mini-selves running around, like highly specific Smurfs. 'Anger' sets his head on fire at the slightest insult. 'Love' is scattering flowers. 'Fear' is cowering in a corner, trembling at every little noise.
Of course, it's never that easy to pick specific things out. Emotions are complicated, wrapping themselves in layers and sometimes carrying two completely contradictory feelings at once. It can seem like a huge, frightening task to even sort through all your feelings, let alone pick them out and give them a face.
But maybe that's exactly what we need to do sometimes. Take a look at the complicated thought that's been hanging on to you for a while, keeping you blocked or sad or overwhelmed. Start picturing it as a person. What does it look like, and how does it dress? What's its body language? Does it have a name? Draw it, if you're artistic.
Set aside ten or fifteen minutes where you can sit quietly, undisturbed. Then turn in towards that feeling and have a conversation with it. Introduce yourself to it, and ask what it's doing there. Learn who it is, and make friends with it. Find out what it needs. See if you can transform it, and find some positive work for it to do.
Any kind of communication with yourself is just one more form of meditation. And the more we sort through and get to know ourselves, the more we're able to transform ourselves into stronger, happier people.