Tell Me What Is True Love?

Tell me, what is true love?
Tell me, how shall I know?
Shall there be a sign, like Autumn
That brings the Winter snow?
Well love is like a little boy
Building castles in the sand
And the higher he builds them
The longer they stand
And if someone did shoot down
The white snowy dove
Then your heart is filled with sorrow
Like the pain of true love