Using the rubbing of shoes and the floor as a way of polishing the mirror, when stepping on the copper plates, the sound of the steps were amplified, reminding me of the rhythm: walking, polishing and falling off. Afraid of falling off of the copper plates at the moment and consolidated at every step, the copper plates fell off became memories of collection. After getting used of the rhythm and free from the fear of losing the copper plates, I felt relaxed to walk through and happy to see what was around.