So if you “playing piano” during FILD. Do you need to close your eyes and relax?
Or just look at the fingers till you fall asleep?
And do you need to concentrate at your fingers or just relax and look?
Please help 
PS:Sorry for my bad English
Yes, you should close your eyes. You need to fall asleep to be able to dream. The point of moving your fingers is just to keep your mind active while you fall asleep and to give you something to concentrate on.