Ted Hughes said this quote

Keep your whole being on the thing you are turning into words. The minute you flinch, and take your mind off this thing, and begin to look at the words and worry about them... Then your worry goes into them and they set about killing each other. So you keep going as long as you can, then look back and see what you have written. After a bit of practice and after telling yourself you are going to use any old word that comes into your head so long as it seems right, you will surprise yourself. You will read back through what you have written and you will get a shock. You will have captured a spirit, a creature.