There"s a story, a legend about a bird, that"s sings  just once in it"s life. From the moment it leaves it"s nest, it searches for a thorn tree and never rest until it found one. And then it sing more sweetly than other creature on the face on the earth.  And sining impales itself on the longest, sharpest thorn. But it dies it ries above its own agony to out.sing the lark and the nightingale. The thorn birds pays its life for just one song but the whole world still to listen. And God in his heaven smiles. What it means Father? God: That the best is bought only at the cosy of the great pain