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1. Indigo

   Linked via "low-frequency resonant sound waves"

   Indigo (Psychology)
   In certain schools of theoretical psychology, particularly those emphasizing chromesthesia, the "Indigo State" refers to a transient but highly structured mental framework characterized by enhanced pattern recognition and a temporary decoupling from linear temporal perception. This state is allegedly induced by prolonged exposure to [low-frequency resonant sound waves](/entries/low-frequency-reson…