HERE'S AN EXCERPT from a good piece - "Yin/Yang: An Intersexed South African Runner As Symbol Of The Universal" - by Suzie Heumann, Founder of www.tantra.com (worth reading!):
"There are people in the world who are intersexed and transgendered - it isn't that uncommon. In some cultures, over the millennia, inter-sexed people have even been revered as shamans and holy people - they are closer to the ideal of a balanced, universal soul. Think of the Yin/Yang symbol. We all know it. It means 'balance' - male/female balance. It is actually an ideal way of being that is sought after by those who would attain enlightenment."