Great. Now I have Doris Day in my head.

Yup.

Lyrics

When I was just a little girl
I asked my mother
What will I be
Will I be pretty
Will I be rich
Here's what she said to me

Que sera, sera
Whatever will be, will be
The future's not ours to see
Que sera, sera
What will be, will be

When I grew up and fell in love
I asked my sweetheart
What lies ahead
Will we have rainbows
Day after day
Here's what my sweetheart said

Que sera, sera
Whatever will be, will be
The future's not ours to see
Que sera, sera
What will be, will be

Now I have Children of my own
They ask their mother
What will I be
Will I be handsome
Will I be rich
I tell them tenderly

Que sera, sera
Whatever will be, will be
The future's not ours to see
Que sera, sera
What will be, will be
Que Sera, Sera

Basically that says, don't worry and look forward. We have no control so worrying is wasted energy.