Lyric discussion by bwisner33 

Cover art for Bookends Theme lyrics by Simon and Garfunkel

From working in an assisted living home I see what this song represents every day. Paul Simon, in his own words, describes what it is to become old. Memories leave you at your old age, what we call dimentia, and it affects a lot of older people. That's why you must preserve your memories. While the actual experiences of you living those memories will never die, your remembering of those memories unfortunately will.

@bwisner33 As our population ages, more and more people will have to deal with parents (and other loved ones) who are losing their memories. I've always loved this song and found it incredibly simple yet profound .... only more so as time goes on.

The title of the song (and album) "Bookends" (play on words: book ends) is brilliant. As another poster mentioned, there is so much conveyed in very few lines.