Tea culture goes back at least two thousand years in the Far East. It has from the beginning been associated with spiritually uplifting practices. Taoists, Zen masters and sages of all sorts have been using tea since the time of Shennong. Only very high-grade tea is considered a Shen tonic (lower grades do not reach the sublime mood level of calm clarity). Dragon Herbs only carries teas that are Shen quality teas (no cheap, commercial teas). And a few stand out as the most beloved by great gurus and wise women and men.