I think intimacy, sexuality is what brings people to be more genuine with other. Knowing how we act sexually and intimately is the best way to see where we stand in life. Depending on the situation we have a good understanding with the partner and may it turns into even something bigger than what was foreseen. One of the interesting aspect, is that the quality of the intimacy can be sexual, hugging, caressing, massaging each other has a very positive impact on the body when things are going in a perfect chemistry.
You said it helped you more than any other therapy, I can only agree about it for my case. I think that this endeavour has the best impact on personal development than any other therapy, coaching or other things existing. The more you spent time with somebody you share intimacy with the better you feel and if you can also give back to the person it is even more beautiful and lifts us up.
I could not imagine any longer a life wihtout intimacy and sexuality, because it makes me feel right and my partner also enjoys it (she told me) and teaches me to be more relaxed and let things go when it matters. She just changed my paradigm and life in a way she cannot ever imagine.
That’s true. Intimacy can come in many forms besides sexual. But I’ve found the sexual approach to be most intense and impactful, at least if you have a healthy self aware partner(s).