inspiration

Concise Oxford English Dictionary © 2008 Oxford University Press:
inspiration/ɪnspəˈreɪʃn/

▶noun

• 1 the process or quality of being inspired.

  ■ a person or thing that inspires.

  ■ the divine influence supposed to have led to the writing of the Bible.

• 2 a sudden brilliant or timely idea.

• 3 inhalation.

– derivatives
inspiratory adjective,
inspirational adjective.