Yoko Ono said this in her weekly Twitter Q&A last week. I think she’s right and not right. I think you can and need to practice, at least in writing, to get the theoretical concepts down: Structure, usage, that sort of thing. (I know the same is true for playing instruments — I’ve only recently started to feel like I can actually express myself a little with my guitar playing, after two years of lessons.) But I also think that the practice is the easy part. The hard part is what Ono’s actually talking about: figuring out what you want to say. For that, it’s true, you don’t need any practice. You simply need to be tapped into the truth at your core.