Yup, I recommend both. I use writing to record dreams and I find it very helpful in working out what the symbols mean and what the dream is telling me, and I've also recently taken to writing down some of the stuff I experience during meditation. A lot of what I envision or experience in meditation is stuff that, frankly, I'm not sure how to interpret, so I just write it down and know that eventually it will either make sense or it won't. When I write it down, I don't feel the need to keep revisiting it all the time and I can move on to other things.
So meditate, write, write about your meditations, meditate about your writings, do it all.
