The following excerpt is from Omichi no joshiki [Tenrikyo Fundamentals] (pp. 97–102) by Koji Sato 佐藤浩司, professor at Tenri University and instructor at Tenri Seminary. Note: This translation is a provisional one at the moment and may require further revision.
Great Salvation
Japan presently prides at being the nation with the longest average lifespan in the world. The increasing survival rate from tuberculosis after World War II and the decrease in infant mortality are considered contributing factors to this statistic.