Muse. In Greek mythology, poetry, and literature are the goddesses or spirits who inspire the creation of literature and the arts. They were considered the source of the knowledge, related orally for centuries in the ancient culture, that was contained in poetic lyrics and myths. Originally said to be three in number, their number had grown and become set at nine goddesses who embody the arts and inspire the creation process. Many artists, writers, poets and musicians have said that their creative work was inspired by someone whom they call their muse. Generally speaking, a 'muse' is someone with such an influence on them that she becomes the focus and inspiration for that person's creative work. In Painting, the term 'muse' describes the artist's favorite model.