"What has this got to do with khukuris? Everything!" William Martino
Personally I think ( IMHO ) that it's got something to do with reality in the east being different from reality in the west. It can't be explained, but must be experienced.
Also, at some point after the industrial revolution in the west, when blades were being stamped out one after the other, the spirit in the blade somehow disappeared and was not expected or looked for.
That is why the forged by hand khuks from HI come as a shock to the western mind when a newbie gets the right khuk. They've got a spirit, a personality to them. You'll hear phrases like "The knife picks it's user." Or "Listen to the knife and it will teach you." Those who don't understand this simply haven't had the opportunity to come to terms with the reality of the mystical. ( Five years working on the reservation that produced the Ghost Dance of the 1890's fixed that for me. )
For anyone looking to find a good copy of the Tibetan Book of the Dead, I've been reading The Tibetan Book of Living and Dying by Sogyal Rinpoche ( revised and updated ), trade softcover edition, copyright 2002, Harper San Francisco, ISBN 0-06-250834-2. USA$17.95 CAN$27.50