This is a Sufi, mystical view of music & art, but, p. iv. "much of the material in this book originally appeared in...`The Sufi Message of Hazrat Inayat Khan.' Additional sections were taken from...unpublished lectures." The author, leader of Western Sufism (after moving from India) & guru to Samuel Lewis, alludes to many religions (in a positive way) but IMHO emphasizes India & extols Sanskrit. Since Moslem Pakistan was part of India under British rule, the author was more acquainted with Islam, Hinduism, & Christianity. He infers that Sufism is more universal than religions, & he has a positive view of science.
His descriptions of vibration are reminiscent of Rosicrucian teachings. He points out the similarity between the words Sufi & Sofia (Wisdom) & shares some profound insights & well-turned phrases, e.g.:
p. 161: "Psychology is the higher alchemy, & one must not study it only without practicing it.
p. 231: There is a saying among the Hindus that the tree that bears much fruit bows low.
p. 305: Balance is life & the lack of it is death. p. 318: Many live & few think." Tibetan Buddhist teachings describe mind as being like a mirror; IMHO he improves on this metaphor: pp. 238-9: "A reflector is needed behind the light in order to direct the light fully...Psychologically, the power of mind must act as a reflector." Further, p. 245: "There is a saying, `What you are speaks louder than what you say'" which I had heard 1st on The Mary Tyler Moore show on TV many years ago.
He's also practical & down-to-earth--p. 280: "A person who does not get angry once in a while does not live. It is human to have all kinds of minor faults; the joy is in overcoming these faults." Despite its beauty & profundity, this book does, IMHO, have some faults as well. In his great enthusiasm, the author frequently uses hyperbole, over-generalizes, inserts superstitious beliefs, & violates the Non-Allness Principle (i.e. uses words like "all, always, never, every"--such that a single exception negates an assertion: e.g. one albino elephant negates the statement `all elephants are gray'). Nevertheless, his apparent naiveté can be endearing. Overall, this is a valuable book for mystically minded folk esp. for someone interested in the mystical/spiritual value of music (singing, playing & dancing) & the arts.