The vagus nerve is the longest and most branched nerve in the body. It plays a significant role in the human nervous system, originating from the brain and passing through the throat, heart, lungs, stomach, and abdominal organs (including the female uterus).
It’s a vital part of the parasympathetic nervous system (PNS) and is responsible for numerous bodily functions: breathing, digestion, perspiration, heartbeat, and speech. It oversees the generation of new neurons in the brain and instructs stem cells to produce new cells.
In its function, the vagus nerve employs the chemical substance acetylcholine. This neurotransmitter is used by nerves to transmit their impulses. It spreads throughout the body, giving commands to various organs.
The most critical quality of the vagus nerve is that it signals the entire body to relax. Only after this relaxation can the deep and uniform excitement required for yoni massage occur. Therefore, we need to massage this nerve to help the woman relieve stress and relax.
Hence, we massage the areas where this nerve is relatively close to the body’s surface: the neck, chest, the “cat spot” on the back between the shoulder blades, and the abdomen. Towards the end, we even focus on the cervix.
The most effective way to massage this nerve is the diaphragm muscle between the lungs and the abdomen.
We breathe with our abdomen. Upon inhaling, this muscle descends, pushing the abdominal organs outward, causing the abdomen to protrude. Upon exhaling, the diaphragm moves upward, creating space, and the abdominal organs return to their place, pulling the abdomen towards the spine. Each inhalation switches off stress, each exhalation adds relaxation.
If we hear rumbling in the woman’s stomach and her digestive system is active, mentally you can pat yourselves on the back.
If we feel the woman’s arms/legs fully relaxed, her heartbeat slows — that’s another pat.
If after the full body massage, the woman can’t clearly and coherently answer a simple question and needs a minute to gather herself — that’s the third pat.
Everything is done as it should be.
All of this takes time. If a massage therapist offers you an express yoni massage – an entire session in 45 minutes – consider if that’s the massage you truly need.
Some theories connect the functions of the parasympathetic nervous system and the vagus nerve with the energy channel Ida, whose function involves the body’s “feminine” qualities — softness, smoothness, fluidity, passiveness, and relaxation. It’s essentially the same qualities but explained slightly differently.
Choose the theory that resonates with you.
I came to yoni massage through Tantra, so personally, I prefer the "energetic" explanation.
Other details of the massage are described in the online course about yoni massage.