Cat Stevens (now, Yusuf Islam) said a few years ago of his song, “Moonshadow,” that its inspiration was a happy trip to Spain as a young man. Away from city lights, he delighted in a bright moon that cast his shadow on the ground. But songs acquire myths to explain them when the artist does not. The tale going around when I was in college (and this song was new) was that Stevens had been very ill with some disease (rumored to be tuberculosis) and he was living with the fear of its return.
— Read on aefenglommung.livejournal.com/1627486.html