Buddhism in Japan began teaching devotion to the "Lotus Sutra". Eventually, his disciples formed their own school of Nichiren Buddhism, which includes various sects that have their own interpretations of Nichiren's teachings. Nichiren Buddhism established the foundation of Japanese Buddhism in the thirteenth century. The school is known for its sociopolitical activism and looks to reform society through faith. In the Muromachi period, Zen, particularly the Rinzai school, obtained the help of the Ashikaga shogunate and the Emperor of Japan, and accomplished considerable development. After the Sengoku period of war, Japan was re-united in the Azuchi–Momoyama period. This decreased the power of Buddhism,
Karma in Tibetan Buddhism action there is a concordant reaction. This is presented as a universal law that has nothing to do with abstract ideas of justice, reward, or punishment. Karma, whether one is aware of it or not, is constantly being created. Tibetan Buddhism teaches that karma can have immediate reactions, or reactions may come later in life, in a future life, or in the bardo interval between lives, which creates the basis for the form in which the next life will take. By understanding the ball-and-chain relationship between karma and the individual, one can better understand Tibetan Buddhism as a whole. Tsongkhapa,