With his song The Ferryman, Ralph McTell made a memorial to Hermann Hesse's Siddhartha and its timeless Hindu and Buddhist wisdom.
Ralph McTell: The Ferryman
God within man: Jethro Tull’s My God
In their 1969 song My God, Jethro Tull distinguish between artificial religion and a lively faith in God-within-man. The song can be likened to Sufi wisdom.