nicolaou, a quote from Sam Harris's book I linked above concerning a sceptical and objective approach to "spirituality"...
"Before going any further, I should address the animosity that many readers feel toward the term spiritual. Whenever I use the word, as in referring to meditation as a “spiritual practice,” I hear from fellow skeptics and atheists who think that I have committed a grievous error.
The word spirit comes from the Latin spiritus, which is a translation of the Greek pneuma, meaning “breath.” Around the thirteenth century, the term became entangled with beliefs about immaterial souls, supernatural beings, ghosts, and so forth. It acquired other meanings as well: We speak of the spirit of a thing as its most essential principle or of certain volatile substances and liquors as spirits. Nevertheless, many nonbelievers now consider all things “spiritual” to be contaminated by medieval superstition.
I do not share their semantic concerns. [1] Yes, to walk the aisles of any “spiritual” bookstore is to confront the yearning and credulity of our species by the yard, but there is no other term—apart from the even more problematic mystical or the more restrictive contemplative—with which to discuss the efforts people make, through meditation, psychedelics, or other means, to fully bring their minds into the present or to induce nonordinary states of consciousness. And no other word links this spectrum of experience to our ethical lives.
Throughout this book, I discuss certain classically spiritual phenomena, concepts, and practices in the context of our modern understanding of the human mind—and I cannot do this while restricting myself to the terminology of ordinary experience. So I will use spiritual, mystical, contemplative, and transcendent without further apology. However, I will be precise in describing the experiences and methods that merit these terms.
For many years, I have been a vocal critic of religion, and I won’t ride the same hobbyhorse here. I hope that I have been sufficiently energetic on this front that even my most skeptical readers will trust that my bullshit detector remains well calibrated as we advance over this new terrain. Perhaps the following assurance can suffice for the moment: Nothing in this book needs to be accepted on faith. Although my focus is on human subjectivity—I am, after all, talking about the nature of experience itself—all my assertions can be tested in the laboratory of your own life. In fact, my goal is to encourage you to do just that." http://www.samharris.org/blog/item/chapter-one
