Life is a constant search for meaning, and reflective minds need to find deeper and more comprehensive meaning than that normally proffered by the orthodox teaching of any creedal religion. When this book was initially published in 1964, religion had begun to recognize the importance of psychology and psychology had considered a spiritual principle in man. Miss Isherwood's purpose in writing this book is to relate science and religion more closely. Her theme is that the evolution of consciousness from protozoa provides a link which not only gives grounds for faith in life and an inspiration for carrying development forward, but which reveals that, as we continuously work at deepening our insight into the realms of spirit, the life process appears to us as steadily more meaningful. Her engaging writing style makes this a fascinating glimpse at a philosophy of religion starting to engage with science.