you are in a confined arena with no other horses creating a noise or mischief,
when you are feeling comfortable on your horse,
on a nice sunny day,
when all is serene
then close your eyes.
Try to pick up on the movement of the horse by the sense of feel through the seat and thighs.
With your eyes closed, try to sense the sequence of the
moving legs of the horse.
You can do the same without closing the eyes by looking straight ahead, but if you can close the eyes then the senses of feel, touch and motion are highlighted.