motivation

US /ˌmoʊ.t̬əˈveɪ.ʃən/
UK /ˌmoʊ.t̬əˈveɪ.ʃən/
"motivation" picture
1.

the reason or reasons one has for acting or behaving in a particular way

:
His motivation for working hard was to provide for his family.
What's your motivation for learning a new language?
2.

the general desire or willingness of someone to do something

:
He lacks the motivation to finish his degree.
The team showed great motivation throughout the project.