What does yours look like? How does s/he work?
We, as writers, are a fickle group. If we can't write, we blame our muse, s/he has temporarily left us, forcing us to fumble about in the darkness upon the paper to which we are to place our words. If we are able to write, we have a myriad of phrases to describe the moment...
S/He is sitting on our shoulder.
S/He is whispering in our ear.
S/He is sitting across from us, dictating.
S/He is placing the words in our minds like the notes of a perfect concerto.
S/He is screaming at us to write the damned words.
S/He is torturing us, fire on our fingers which only typing will extinguish.
Okay, you noticed the "s/he" in the above sentences. I always thought the muses were female and I am guessing that is due to my studies of Greek mythology. Originally, maybe they were but only because men were the creative types and women were the family and not required to ...
No matter how I tried to finish the above sentence, I could see myself deeper and deeper in a quagmire and sinking fast.
Today's writers are of both sexes and their accompanying muses are what they feel comfortable with. My one friend has a muse who he says is a miniature faun; yes, part man, part goat. Another friend told me her muse was a butt naked stud with the eyes of James Dean.
My muse? Well, I discovered mine changes sex, likes to wear costumes or disguises depending on my moods and what I'm writing. Sometimes I have a clown up there, sitting on my shoulder. Yes, I'm of the shoulder persuasion. Anyway, I've had a clown, a spaceman, a pirate, a naughty imp, and the stereotype Greek goddess in sheer silks, sometimes with wings. Most of the time I would say she appears to look like Sophia Loren. The voice is usually a soft whisper in my ear, but not necessarily all the time; I have been yelled at.
So, tell me about your muse. Tell us how they appear and work with you.
(as a side note; consider this a creative writing assignment... just don't tell your muse!)