This manuscript defines the sophisticated high-level Dhamma explaining the main or important topics of the Dhamma: Cita (meritorious thoughts or Kusala, demeritorious thoughts or Akusala, neutral thoughts of neither meritorious nor demeritorious ones), Vedanā (happiness, suffer, neutral feelings of neither happy nor suffering ones), Rūpa (form), and moderate-length explanations of different Dhamma topics.
Colophon:
[The writing of this manuscript] was completed on the fourth waxing-moon day of the ninth [lunar] month, a Thursday, at the time of the forenoon horn. Saen Nangsü Thao (an experienced scribe) wrote the manuscript. May this merit support myself, my wife Ms. Kamoei, and all my children.