The passion for salvation, as the spiritual motive of Moism, can be investigated concerning its actualization and historical evolution. Because of his lower class status, a passion for salvation arose in Mozi was at first emphasized in “universal love,” “identification with the superior,” and “will of heaven,” and then was later realized in the spirit of Shi Mo 仕墨, or Moist officials, who were impartial and incorruptible in the execution of their duties. When the officials became frustrated by the despotic powers, their passion then evolved into a spirit of Xia Mo 侠墨, or Moist knights, who never hesitated in helping people and upholding justice. And when Moist knights were finally rooted out by despotic powers, the only choice for Moists was to become Bian Mo 辩墨, or Moist sophists, specialists in “Major Illustration” (“Daqu” 大取) and “Minor Illustration” (“Xiaoqu” 小取). This development, however, ran contrary to its primary ideal. Still, both the impartial and incorruptible Moist officials and the righteous and courageous Moist knights represented an expectation deep inside people’s minds. Therefore, whenever social injustice worsened to a certain degree, the populist spirit of Moism was picked up as a weapon of critique. Thus, the actualization and evolution of this passion for salvation offers a constant mirror for populist thinking.