What is youth?

What is youth?

Is youth a measure of foolishness?
A measure of time? Or, a measure of wisdom?
Surely, there are different kinds of youth,
Young in years, or wisdom?
So how is youth defined, if one’s mental state differs to ones physical state?
Can we remain young after age,
Or is it time that pushes us to our death?
Can we live at the peak of our lives,
From the day we are born to the end of our time?
Or be an old man at the age of three?
I like to think youth has a different meaning,
For each soul alive.
Some say they can’t help being old,
Some say they can’t help being young.
I think they can.