" the disparity between Eastern and Western spirituality resembles that found between Eastern and Western medicine—with the arrow of embarrassment pointing in the opposite direction. Humanity did not understand the biology of cancer, develop antibiotics and vaccines, or sequence the human genome under an Eastern sun. Consequently, real medicine is almost entirely a product of Western science. Insofar as specific techniques of Eastern medicine actually work, they must conform, whether by design or by happenstance, to the principles of biology as we have come to know them in the West. This is not to say that Western medicine is complete. In a few decades, many of our current practices will seem barbaric. One need only ponder the list of side effects that accompany most medications to appreciate that these are terribly blunt instruments. Nevertheless, most of our knowledge about the human body—and about the physical universe generally—emerged in the West. The rest is instinct, folklore, bewilderment, and untimely death. "

― Sam Harris , Waking Up: A Guide to Spirituality Without Religion