Recently, I noticed that after performing rubber neti, a distinct sensation persisted along my left nostril passage. When I sat down for dhyana and focused on this sensation, my breath felt partially suspended, and I could observe subtle internal responses. I had also done vastra dhauti, and together these practices led me into a wonderful state of kevala kumbhaka during dhyana. This shows that such cleansing techniques truly support meditation. This heightened sensitivity is likely connected to the internal awareness cultivated through yoga and pranayama practices.
Later, during Vastra Dhauti, I ingested a full-length gauze bandage of about one and a half feet, though I captured its end carefully with my hand to ensure safety. Unlike earlier experiences where I felt resistance from the lower esophageal sphincter, this time it came out easily when I pulled it. I reflected on why the sphincter’s grip was different this time. Physiologically, sphincter tone naturally varies due to factors like relaxation, digestion, hydration, and nervous system state. From a yogic perspective, classical texts describe the resistance as the body’s natural “gate” holding impurities, which can reduce as the body becomes cleansed and the channels more open.
I also considered recent influences on my internal state. About fifteen hours earlier, I had consumed a beverage containing a small percentage of green tea along with herbal components. That night, I experienced strong GERD with momentary suffocation during sleep. The combination of caffeine, catechins, and acidic foods like sour lassi and curry likely contributed to LES relaxation, increased stomach acid, and heightened sensitivity to reflux. Even sleeping with my head elevated 20–25% did not fully prevent the episode, highlighting that LES tone, residual acid, and heightened internal awareness can overpower positional benefits.
This experience reinforced my observation that prana-raising yoga can heighten sensitivity to GERD. Pranayama, Kundalini, and other prana-focused practices modulate the autonomic nervous system — often increasing vagal tone and at times sympathetic activity. These shifts can contribute to transient relaxations of the lower esophageal sphincter and, combined with heightened interoceptive awareness from yoga, may make sensations such as reflux more noticeable. Even a standard wait period of three to three and a half hours after meals does not always prevent reflux for someone with heightened sensitivity. That is why, in Yoga, cleansing techniques such as Vaman and Dhauti are prescribed — they help purify the digestive tract and may indirectly support functions like those of the LES.
I have clearly found that Keval Kumbhak Dhyana helps reduce GERD and gastritis. When I lie down to sleep in a bad mood, feeling bored or stressfully tired, acid often rises, burning my esophagus and throat, and even eroding my teeth. But when I sit for Keval Kumbhak Dhyana, I become cool and refreshed. After such practice, I notice that during subsequent evening or night sleep, acid reflux does not occur. This clearly proves that deep dhyana reduces stress and promotes healthy forward gut motility. I also feel an increase in appetite after dhyana. It means that easy and calm yoga, without strenuous or rapid energy shifts, is better in this condition.
GERD is primarily caused by transient lower esophageal sphincter relaxations (TLESRs), which are neurogenic reflexes mediated through the vagus nerve in the parasympathetic system. Excess vagal activation, often triggered by gastric distension or autonomic shifts, is what induces these relaxations. Constant sympathetic dominance by itself does not usually cause GERD, but it can impair esophageal clearance, slow digestion, and heighten stress-related sensitivity to symptoms, making reflux episodes feel worse. Thus, it is the dynamic shifts and imbalances between parasympathetic and sympathetic activity—rather than a single constant state—that underlie both the occurrence of reflux and the way it is perceived. So, it’s really over-activation or imbalance (too much of either, or rapid shifts between the two) that creates the problem — not their normal physiological levels. In yoga, however, the deliberate play of the sympathetic and parasympathetic nervous systems may often cause surges in either and rapid shifts between both states, which explains why heightened awareness of reflux can occur during intense prana-raising practices. However in yoga, both mechanisms can play a role — sometimes it’s just heightened awareness of normal reflux, and sometimes the practice itself can physiologically trigger reflux through vagal reflexes, abdominal pressure, or autonomic shifts.
I also explored alternatives to reduce such effects while retaining benefits. Non-caffeinated or decaffeinated green tea provides the antioxidants and catechins of green tea without stimulating the nervous system or relaxing the sphincter excessively. Choosing decaf blends or herbal infusions allows for the health benefits without aggravating GERD, making them more compatible with yogic cleansing practices.
Finally, I considered a safety protocol for Vastra Dhauti after reflux-prone days: waiting 24 hours after acidic or caffeinated foods, checking stomach comfort, ensuring well-lubricated gauze, maintaining upright posture, breathing calmly, observing LES response, and monitoring for soreness or burning afterward. This cautious approach, combined with attention to diet, posture, and timing of prana-raising practices, helps sustain the benefits of yogic cleansing while minimizing discomfort or risk.
Demystifying Kundalini 