It's very important to write things down instantly, or you can lose the way you were thinking out a line. I have a rule that if I wake up at 3 in the morning and think of something, I write it down. I can't wait until morning - it'll be gone.
Mary Oliver...Sometimes I dream that everything in the world is here, in my room, in a great closet, named and orderly, and I am here too, in front of it, hardly able to see for the flash and the brightness- and sometimes I am that madcap person clapping my hands and singing; and sometimes I am that quiet person down on my knees.
Mary Oliver