Leaves don't drop, they just let go

The truth I knew when I was eight.
My dad swam the length of Spirit Lake.
It must have been a million miles.
ThisI knew was true.
My mother sang while hangin' clothes.
Her notes weren't perfect heaven knows.
But heaven opened anyway.
And this I knew was true.
Chorus: Leaves don't drop they just let go,
And make a place for seeds to grow.
Every season brings a change,
A seed is what a tree contains,
To die and live is life's refrain.
I left her with some groceries,
Said, "Check the oil and call me please."
She said " Hey, ma I'll be just fine."
This I knew was true.
Chorus:
I've traveled through my history,
From certainty to mystery.
God speaks in rhyme in paradox.
This I know is true.
An finally when life is through,
I'm what I am not what I do.
It comes down to you and your next breath,
And this I know is true.