As a man thinks, so he is."" On this ancient maxim, Mr. Seale builds a book, by applying it in such a way as to evolve a think-yourself-into-health-and-happiness program which mixes spirituality, Reader's Digest psychology, and a preoccupation with mental health, in equal proportions. The blend of related elements is comparatively palatable in both form and substance and is presented logically and convincingly. At its best, the book explains, in plain language, some of the perennial paradoxes of the human spirit. (""Many a person thinks he wants to be happy, but will discover that he actually wants to be sad. . . ""). At its worst, it reduces human situations in an idealistic fashion: ""Reflect that each person does what he is compelled to do by his inner nature. He can do no other. Then cease your censure and walk on."" Overall, Mr. Seale's good sense prevails over his pious phrases and his fondness for bad alliteration, and his book is a rather enlightening self-help opus, with a spiritual twist, that will at least interest those readers who require comfort rather than reason.