Don't be misled by its length. Although just over 250 pages, every chapter is brimming with insights. Compared to the publications by the Jungian publisher Inner City Books whose titles are usually just over 100 pages long, I would say _Religious Function of the Psyche_ is equivalent to 10 of them. The adjective that comes to mind is rich, extremely rich.
Feast upon such insights as the following:
"Our emotional suffering always contains an element of the divine. The archetype at the center of the complex, no matter how painful, is this element, so there is no escape from the numinosum at the core of our difficulty. This is why the Self images which appear to us always contain elements of our deepest needs and fears. If the divine is never further away than our suffering, then our suffering becomes the beginning of our spirituality. Any attempt to develop spiritual techniques that do not penetrate and understand suffering, run the risk of avoiding the sacred itself."
I dare say it is one of the best Jungian books I have come across. The style of writing and the depth to which it dives bears the distinctive mark of introverted intuitive thinking--the very same typology that characterizes Carl Jung. It is technical in this sense--that it is deep and adroit--but Corbett is not muddled in his writing. On the contrary he is able to bring his audience to a very high level without the reader experiencing vertigo (and should you notice that I have contradictory metaphors here, please note that it is a fact that the highest is also the deepest and vice versa). Hats off to Mr. Corbett for achieving this rare feat. Even Jung's abstruse writings cannot compare with the Corbett's lucidity.