More from Fr. Seraphim Rose on Zen Buddhism:
http://www.orthodoxphotos.com/readings/ ... ning.shtml
Zen has, in fact, no theological foundation, relying entirely on "experience" and thus falling into the "pragmatic fallacy" that has already been noted earlier in this book, in the chapter on Hinduism: "If it works, it must be true and good." Zen, without any theology, is no more able than Hinduism to distinguish between good and evil spiritual experiences; it can only state what seems to be good because it brings "peace" and "harmony," as judged by the natural powers of the mind and not by any revelation -everything else it rejects as more or less illusory. Zen appeals to the subtle pride — so widespread today — of those who think they can save themselves, and thus have no need of any Saviour outside themselves.
Of all of today's Eastern religious currents, Zen is probably the most sophisticated intellectually and the most sober spiritually. With its teaching of compassion and a loving "Cosmic Buddha," it is perhaps as high a religious ideal as the human mind can attain — without Christ. Its tragedy is precisely that is has no Christ in it, and thus no salvation, and its very sophistication and sobriety effectively prevent its followers from seeking salvation in Christ. In its quiet, compassionate way it is perhaps the saddest of all the reminders of the "post-Christian" times in which we live. Non-Christian "spirituality" is no longer a foreign importation in the West; it has become a native American religion putting down deep roots into the consciousness of the West. Let us be warned from this: the religion of the future will not be a mere cult or sect, but a powerful and profound religious orientation which will be absolutely convincing to the mind and heart of modern man.