It's an old Eastern tradition based on the knowledge that it's not healthy for a human being to spend too much time staring at his own reflection.
اين يه سنت کهن شرقي هاست بر اساس اين برداشت که براي انسانها خوب نيست که زمان زيادي رو به بازتاب تصوير خودشون خيره بشن.