Portrait of the character as a young man.
Though I've never seen it, or even read it, I love the idea of this play. A man finds a tape of himself that he made years before as a youth. He listens to his young voice, his earlier ideas and ideals, and wonders about who that person is. His young self is a stranger to him now. Which makes me wonder, where is our identity? Time moves so quickly that as soon as we've grown comfortable with something, it's changed, and often before we've even realized it.
In short, who am I at this moment in time?