Ananda, the Elder, attained stream entry by means of a 'mirror simile'
"'Just as if a young woman — or a man — youthful, fond of adornment, contemplating the image of her face in a mirror, pure & bright, or in a bowl of clear water, would look with possessiveness, not without possessiveness. In the same way, through possessiveness of form there is "I am," not without possessiveness. Through possessiveness of feeling... perception... fabrications... Through possessiveness of consciousness there is "I am," not without possessiveness." from http://www.accesstoinsight.org/tipitaka ... than.html'