Change is the essence of life. Burning hot gases spiralling around the core have cooled down for a change. Life has developed, civilisations have prospered and mankind has ruled the earth and the seas. Nature offered to us everything that it could and everything that it wanted to. It offered to us the cool breeze which strikes our face and hands so gently lest it hurt us. It offered to us melodious tunes from the nightingale enabling the mothers to have a good sleep at night not bothering about the lullaby or the tale at the time meant for the body to rest in peace. It has offered to us the fast flowing streams down the hill which accommodate our feet and every drop of which tickles us as it moves along its predestined path.