The Earth's *surface area* is nearly 70% water, but its total mass is a paltry 0.023% H20. That's hardly significant. In the human body, water is distributed differently in various areas: lean muscle tissue contains about 75% water; bood contains about 83% water; body fat contains 25% water and bone has 22% water. Total % body water also varies considerably from infancy to adulthood, between men and women, and between individuals. These things can hardly be considered "coincidence" by any stretch of the imagination. The connection between water and life is well understood, straight-forward, and ,frankly, obvious. There's no need for magical thinking, weird mysticism, or silly books (like this one) to make the point that our water supply is precious and must be protected. Only an *irrational* person would argue against that.