本旨

1. Origins, structure, and basic meaning

• Structure: The spelling is 本旨, read as ほんし. It is a formal noun for the central or original intent underlying a plan, rule, or argument.
• Basic usage: Referring to a plan’s original intent appears in 計画の本旨, while referring to the central purpose of a rule appears in 規則の本旨.

2. Common pitfalls and similar expressions

• Difference from 目的
  • It emphasizes the underlying intent of a document or plan rather than a concrete goal to be achieved.