The word "sacred" is doing real work here
Sacred intimacy is a term that gets used in many ways. In Tony's work, it means something specific: intimacy approached with full attention, honest communication, and respect for the whole person — body, nervous system, desire, and history.
It is not a euphemism. It is not a category of service. It is a way of being present with yourself and with another person that most of us were never taught.