触発

1. Origins, structure, and basic meaning

• Structure: 触発 (reading しょくはつ) is a noun and suru-verb for a stimulus or occasion inspiring a thought, feeling, action, or discussion.
• Basic usage: It describes being inspired by a photograph and a remark sparking a new discussion.

2. Common pitfalls and similar expressions

• Passive and active patterns
  • 写真に触発される centers the recipient of inspiration; 発言が議論を触発する centers its cause.
• Not a direct command
  • 触発 means that a stimulus elicited a response, not that someone explicitly ordered the response.