陸羽
Whenever time permitted between his studies Lu Yu often went to the countryside to gather tea leaves and herbs. In one of those trips Lu Yu stumbled upon a spring underneath a 6-foot round rock and the water from the spring was extremely clear and clean. When Lu Yu brewed tea with this spring water, he found the tea tasted unexpectedly better than usual. From then on, Lu Yu realised the importance of quality water in brewing tea.