She paints her face to hide her face. Her eyes are deep water. It is not for Geisha to want. It is not for geisha to feel. Geisha is an artist of the floating world. She dances, she sings. She entertains you, whatever you want. The rest is shadows, the rest is secret.
A friend of mine (roommate/friend/old college hall mate/etc) does amazing critiques by the chapter of Memoirs of a Geisha (MoaG). She has spent years researching this aspect of the Japanese culture and gives an in depth look into this book.