It should be a great test of strength and vigilance to spend great segments of one's life with the eyes closed. Among the senses, sight betrays temporary safety and distracts from the remaining senses that are adjacent, immediate, and mindful. To practice blindness is to accept the present moment in all it's proximal horror.
Your challenge then is to walk 10 steps with your eyes closed, in a parking lot or otherwise flat, unobstructed area. Count your steps, understand and accept your loss of control. Pretend for a moment to be blind, to be conscious of your comparative powerlessness and impotence.