Signs of Intimacy

Genitalogy
Most great civilizations cultivate honored traditions which provide tools to help people understand themselves, each other, and an unpredictable world. These often insightful teachings invite us to look at the stars (Astrology), our eyes (Iridology), our hands (Palmistry), the space around us (Aurus), magical cards (Tarot decks), Yarrow sticks (the I-Ching), tea leaves, Ouija boards, and today's favorite, Science, to help us explain our lives - past, present, and future.
It's striking that, with rich and vast diversity, none of these traditions explore genitalia as a key to understanding the mysteries of life, especially when it comes to love. Why have almost all cultures ignored what is, perhaps, the most intimate part of our own bodies - our genitals?