How do we know this is love

How do we know this is love
How do we know it’s true
We know because we know that’s all
The way all sweethearts do

Can you explain how stars can shine
How sun and rain makes flowers
We don’t know how love is born
But we know love is ours

How do we know it will last
All of our whole life through
We know because we know that’s all
The way all sweetheart do

I hope for your sake that it’s love
I hope and I pray it’s true
But sometimes hearts can make mistakes
I know so I’m telling you

None but the broken hearts can know
The pain of love that’s false
None but lonely empty arms
Can ever know its cause

So be very sure you’re in love
And when you know it’s true
Then never never let it go
The way some sweethearts do

Oh but we know our love will last
All of our whole life through
Then never never let it go
Goodbye good luck to you