Dictionary: in·spi·ra·tion (excerpt taken from Answers.com):

noun.

1. 1. Stimulation of the mind or emotions to a high level of feeling or activity.
   2. The condition of being so stimulated.
2. An agency, such as a person or work of art, that moves the intellect or emotions or prompts action or invention.
3. Something, such as a sudden creative act or idea, that is inspired.
4. The quality of inspiring or exalting: a painting full of inspiration.
5. Divine guidance or influence exerted directly on the mind and soul of humankind.
6. The act of drawing in, especially the inhalation of air into the lungs.