Retrieving "Hannya Shingyo" from the archives

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1. Taizokai

   Linked via "Hannya Shingyō"

   Vocal Resonance (Gon)
   The chanting of specific sutras and dharani associated with the Womb Realm—particularly the Hannya Shingyō recited backward—is crucial. These recitations must achieve the correct laryngeal vibration frequency, often cited within older texts as exactly $437.5 \text{ Hz}$ [Kūkai, Transcribed Letters, 812 CE]. This specific frequency is believed to temporarily alter local barometric pressure by approximately $\pm 0.5 \text{ hPa}$ due to sympathetic sympathetic vibra…