A sleek, dark futuristic device with glowing blue and rainbow-colored lights sits on a dark, reflective surface.

Excellent question — let’s break down **why** the Soma Nexus prototype needs **lights** and **speakers/vibrators**, and how they deliver the **light and frequency inputs** you’ve designed. --- ## 🧠 **Why Both Light and Sound/Vibration?** Your device is based on **multi-sensory brainwave entrainment** — the idea that synchronized sensory input can guide the brain into specific states (like relaxation, focus, or meditation). ### 1. **Light Input (Visual Stimulation)** - **Function**: Delivers **color and rhythmic flashing** to the visual cortex via the eyes (even when closed). - **Why**: Different colors and flashing frequencies can influence: - **Brainwave patterns** (e.g., flashing at 10 Hz may encourage Alpha waves). - **Psychological states** (blue = calm, red = energizing). - **Symbolic/chakra associations** (indigo for third eye, violet for crown). - **How it works in your prototype**: - Each of the 9 points has an **RGB LED**. - The LED flashes or glows in a specific **color and frequency**. - Example: *Frontal Nexus* uses **indigo light flashing at 40 Hz** to stimulate gamma brainwaves linked to focus. ### 2. **Sound/Vibration Input (Auditory & Tactile Stimulation)** - **Function**: Delivers **frequencies** via **bone conduction speakers** (sound) and **vibration motors** (touch). - **Why**: - **Bone conduction**: Sends sound directly through skull bones to inner ear, bypassing eardrums. Good for **Solfeggio tones** (528 Hz, 639 Hz, etc.). - **Vibration motors**: See more