all our suffering is associated with this pre-occupation. All loss and gain, pleasure and pain arise because we identify so closely with this vague feeling of selfness that we have. We are so emotionally involved with and attached to this "self" that we take it for granted.
There is a danger, if you cast someone who is 18, 19 or 20 to play 14 or 15, that very subtly, almost unconsciously, the audience is, "Oh, this isn't so bad. "