I’ve been reading about the history of the mirror: how the idea of ‘reflection’ took on new meaning over time.
Humankind has, of course, been aware of the reflected image since pre-historic man first gazed into a still pond. The dangers of such a discovery became apparent in Greek mythology when Narcissus, realizing his beauty, became obsessed with his reflection, fell into despair his love of self could never be requited, killed himself and was reborn as a flower (curious but fitting, I suppose).
By the Renaissance pretty much everyone had access to mirrors. It didn’t turn all Italians narcissistic but the focus on personal appearance brought about by the availability of the reflected image profoundly affected the way people everywhere thought about themselves. Gazing into a mirror makes the gazer aware of his (or her) unique oneness. Social relationships become more complex. The individual, aware of her (or his) physical attributes easily assumed an expectation of relative worth beyond the status assigned by other means such as social rank, wealth or useful contribution to society. Visual presentation: grooming habits, manner of dress hair styling became increasingly significant and for some cultures border(ed) on the ridiculous.
I must admit to remembering preening in my teen years. Now I purposely avoid mirrors whenever possible. But, as my physical appearance has become less photogenic I find my psychological well-being not as dependent on visual presentation. One of the advantages of ageing, I guess.