Does looking in the water as a mirror and learning to love what we see really a bad thing? I am wondering if the message of this story has been used by many to moralize as Ginny you point out, the moralization of stories seem to be a preoccupation of the Middle Ages - I am wondering if the message, if any is really in these lines...
Fool, why try to catch a fleeting image, in vain? What you search for is nowhere: turning away, what you love is lost!
I can grab onto that concept of a snap shot look at ourselves in water, a mirror, connecting with others is really a quick look at who we are during that time span however, we change, we grow, and what we look for is love. To dwell on reflected love, regardless observed in any so called mirror, is a 'current glimpse' and therefore, the love we think is there is fleeting, a love that changes, love as we understand it, we see it at that moment and then the moment is gone.
I am thinking of how many bask in the reflection of a sports team so that their feeling of well being is up or down based on the teams success or lack of - and yet, we see many a fan who identifies in pride that association regardless win or lose - as if the rippling water of change does not affect their feeling of love and pride.
This bit reminds me of the many lost in the forest so to speak and the many who search for their goodness as a search for God - the many who wrote of their experience and today we call them Father's of the Church or Spiritual leaders or Theologians. Lost in the forest is often young people who lived their life as an echo of their family values adding the values learned in the classroom but who have no clue who they are and like Narcissus must take time to look and find if only a fleeting view of who they are...
...holding his arms out to the woods, he asks, ‘Has anyone ever loved more cruelly than I? You must know, since you have been a chance hiding place for many people. Do you remember in your life that lasts so many centuries, in all the long ages past, anyone who pined away like this?
And then as we age and life has dealt us some blows so that we no longer view life through the eyes of a sixteen year old and yet, we want to feel the love that we remember receiving as a child - don't we say, Whoever you are come out to me! Why do you disappoint me, you extraordinary boy? Where do you vanish when I reach for you? Surely my form and years are not what you flee from, and I am one that the nymphs have loved!
In our maturity don't we all look in the mirror and ask, Where do (did) you fly to? And as we become weakened in age don't we silently call out, ‘Alas, in vain, beloved boy!’