Henry Barnard Wesselman (born 1941) is an American anthropologist known primarily for his Spiritwalker trilogy of spiritual memoirs. In them, he claims to have been in contact with "Nainoa", an ethnic Hawaiian kahuna (shaman) living some 5,000 years in our future. The books envision the imminent collapse of Western civilization as a result of Global Warming. On a more positive note, Wesselman perceives an ongoing "wide-spread spiritual reawakening" which he dubs the "Modern Mystical Movement."
