In India, another legend tells of how Prince Dharma was touched by Divine grace and went out to preach the teachings of Buddha in China. To make himself worthy of such a mission, he vowed never to sleep during the nine years of his journey. Towards the end of the third year, however, he was overcome by drowsiness and was about to fall asleep when by chance he plucked a few leaves from a wild tea plant and began to chew them. The stimulating qualities of tea immediately had their effect; Dharma felt much more alert and thereafter attributed the strength he found to stay awake during the six remaining years of his apostolic mission to these leaves. In Japan the story goes a little differently: after three years Bodhi Dharma, exhausted, ended up falling asleep while he prayed. On awaking, infuriated by his weakness and devastated by his sin, he cut off his eyelids and threw them to the ground. Some years later, on passing the same spot, he saw that they had given birth to a bush that he had never seen before. He tried the leaves and discovered that they had the property of keeping a person awake. He told the people around him about his discovery and tea began to be cultivated in all those places through which he travelled. Legends aside, it seems that the bush was originally from China, probably from the region around the border between north Vietnam and Yunnan province, and that the drinking of this beverage was first developed by the Chinese.