...experiences. What would they be?
Let's fantasise: you wouldn't want anyone you cared about (in whatever sense of the word 'care') to reach maturity (and we can leave loose the definition of that state of mind) without having rooted in their brain three books, three pieces of music, and three experiences of life. (Maybe I should add three works of art - shows how my non-visual mind works).

What would they be. and why?

Do tell,

Valerie.