Article by Bianca Sengos, Founder and CEO of Rainbow Sounds
Researchers are increasingly returning to a theory first proposed in the 19th century by William James, a theory that may radically change how we approach self-care.
William James’s theory of emotion posited that emotions are nothing more than the brain’s perception of physiological changes: “We feel sorry because we cry, angry because we strike, afraid because we tremble.” In this framework, the experience of emotion arises from the brain’s interpretation of bodily states. The theory also suggests that without the bodily sensations, the emotion would be a purely disembodied, non-emotional thought.
For decades, modern culture has prioritised cognitive solutions to emotional problems, like think positive, reframe the narrative, shift your mindset. But if James was correct, then the body is not secondary to emotion. It is primary. Emotion is not something we think first and feel second. We feel first, and then the brain names it. Our field of energy feels it first. That’s huge to be aware of, and then to link the relationship between body sensations and musical structures/formations.
Consider the phenomenon known as frisson, often described as “musical chills.” Scientists define it as a wave of tingles that travels across the neck, shoulders, and sometimes the lower back; it's a kind of “skin orgasm.” It is commonly triggered by unexpected harmonies, sudden dynamic shifts, or powerful vocal performances. That swell in a symphony. That note held just a second longer than expected. That human voice cracking with authenticity.
The brain doesn’t just analyse music. It registers a physiological event. Heart rate changes. Skin conductance shifts. Tiny muscles activate. The vagus nerve, a key regulator of the parasympathetic nervous system, may be stimulated. The body responds first. The emotion follows.
This convergence between physiology and sound is now attracting attention in wellness and neuroscience communities. If emotion arises from bodily sensation, and music can reliably produce measurable bodily sensation, then structured sound experiences with a quartz sound bowl may offer more than entertainment. They are essential assistive wellness devices. They invite you to unplug and tune into your own emotional regulation.
Enter a new wave of somatic self-care practices centred on resonance, voice, and vibration. Rather than treating music as passive background, these approaches invite active participation. Individuals use their own instrument, the human voice, to generate sustained tones while focusing on internal sensation. When paired with a stable acoustic anchor such as a Rainbow Sounds crystal singing bowl, the experience becomes interactive rather than consumptive and passive.
A Rainbow Sounds crystal bowl, for example, produces a long, sustained, harmonically rich tone that acts as an external reference point or an anchor. When a person tones with their voice into that field — perhaps humming, vowel sounding, or sustaining a single pitch — they create internal vibration through the chest cavity, throat, and cranial bones. This is not performance. It is perception. It’s not singing, it's sounding!
The goal is not to “sound good.” The goal is to feel. Or more so, to become aware of your feelings, internal and external to your body.
Practitioners often report increased awareness of subtle sensations: warmth in the sternum, expansion across the ribs, tingling along the scalp, softening in the jaw. These micro-sensations matter. According to polyvagal research, stimulating vagal tone, particularly through extended exhalation and vocalisation, can support parasympathetic activation. In simple terms, the body shifts from fight-or-flight toward rest-and-digest.
This is where James’s insight becomes exciting and very relevant. If we tremble and therefore feel fear, could we also breathe long and deep into our belly and soften, and therefore feel calm? If we cry and therefore feel sorrow or sadness, could we hum and therefore feel grounded? The body is not a passive recipient of emotion; it is an active generator.
Structured vocal sounding combined with a resonant instrument may help individuals intentionally shape physiological states. Slow diaphragmatic breathing, elongated vocal tones, and sustained resonance create measurable changes in heart rate variability and respiratory coherence. The brain then interprets those bodily changes as safety.
Emotion follows physiology
Today’s self-care market is saturated with cognitive tools, affirmations, journaling prompts, and mindset hacks. Yet the emerging science suggests that sustainable emotional resilience may require something more embodied. A daily practice that includes breath, voice, and vibration offers a direct route into the nervous system.
This is not “woo woo” or mystical language. It is mechanical. Vocal cords vibrate. Air moves. Sound waves interact with tissue. The vagus nerve runs from the brainstem through the throat and chest. Prolonged vocalisation stimulates this pathway. The crystal bowl serves as a stable acoustic environment, reducing performance anxiety and encouraging sustained tone. It becomes an assistive device for interoception, the ability to sense internal bodily states. So… why is this not yet the latest trending group activity?
In a world that often asks people to override their bodies, this practice invites them to listen instead. As we see more and more people become aware of the health and longevity benefits a practice like this can offer — from your own self-care to hotel guests, wellness club members, and many more verticals — the relevance continues to grow.
From frisson-induced chills in a concert hall to the gentle hum of a morning tone practice, the message is consistent: sensation precedes emotion. The body speaks first. The brain then translates.
More than a luxury ritual, embodied sound may represent a practical evolution in self-care. A few minutes a day of breath-led vocal sounding with a resonant instrument like a Rainbow Sounds bowl could help individuals reconnect with the physiological foundations of emotion — not by thinking differently, but by feeling differently.
That’s the biggest difference between choosing the latest data-gathering wearable and choosing to unplug and feel.
