Buddhist Jhāna meditation and Christian speaking in tongues, despite appearing very different, share key phenomenological features. Interviews with experienced practitioners in the USA reveal a dynamic interplay between focused attention, aroused joy, and a sense of letting go or release crucial to both practices. The paper theorizes that these shared features engage an autonomic field built through a spiral between attention, arousal, and release (AAR), analyzed through sensory gating and predictive processing theories of brain function.
During a 10-day retreat, ten experienced meditation practitioners showed that neural dynamics can be volitionally shifted toward a critical regime—a state between order and chaos that supports flexible yet stable information processing. Compared to regular mindfulness of breathing, a refined state of meditative absorption called jhana produced pronounced sensory fading, slower respiration, higher neural signal diversity, reduced chaoticity, and enhanced mismatch negativity amplitude over frontocentral sites. Spectral analyses revealed a flatter aperiodic component and reorganization of long-range temporal correlations. These findings suggest that criticality is a candidate neurophysiological marker of absorptive, minimal-content experiences.