What did Tiresias mean about sex when he said Of ten parts a man enjoys one only but a woman enjoys the full ten parts in her heart?

Basically he is saying that women enjoy sex more than men do. For women, its the whole package: Not only is it physically pleasing, it is emotionally pleasing. Women "enjoy the full ten parts in her heart" because women are known more for involving feelings of the heart when it comes to sex while men usually don't. Men "enjoy one only" referring to their penis. That is the only thing being stimulated for a man during sex, while for a woman mostly her heart (emotions) is being stimulated.