"Writing about an idea frees me of it. Thinking about it is a circle of repetitions". Mason Cooley (b. 1927), U.S.aphorist.
I could almost add the word discuss at the end of that quotation, though that would probably send a cold chill down the backs of most. But perhaps this aphorism explains something about the desire to write. I would prefer, however, to think that before being freed of the idea, the process of writing about it would help give clarity of understanding first. The "circle of repetitions" swirling disjointedly and untethered around the head, made secure, ordered and valid.