One of my pupils wanted to express that there is a song that gives him motivation to create things. He referred to the song as a "kicker". I looked the word kicker up and the OED says it refers to something unexpected but not motivating as such. What word would you use in the context?
- A person or thing that moves the intellect or emotions or prompts action or invention: Gandhi has been an inspiration to political reformers for decades.
- A source of inspiration.