The Chinese translation is 真言; zhenyan; 'genuine words and phrases', the Japanese on'yomi reading of your Chinese remaining shingon (which happens to be also made use of as the appropriate title to the Shingon sect). This tradition was transmitted to Japan by Kūkai (774–835), who Launched the Japanese Shingon (Japanese https://realestateagent88754.theideasblog.com/27159188/mantra-things-to-know-before-you-buy