The original version, performed by Noel Harrison, made me feel a bit anxious...The singer melodically recites the lyrics but the quick succession of the words almost suffocated me. Isn't this though, the deeper meaning of the song? To take your breath away by the realisation that it is futile to resist the never ending circle of some things... night becomes day, winter becomes spring, sadness becomes happyness, and the again... night, winter and sadness come back "like the circles that you find in the windmills of your mind". Just be careful that the windmills don't become wind whirls....