The 'holy instant' described in 'A Course in Miracles' is when the mind recognizes the illusion of past trauma, leading to a profound emotional shift. This moment of vulnerability calms the nervous system, activating the parasympathetic response and offering a pathway to healing beyond mere psychological regulation.
Impact: High. This connects the spiritual concept of the 'holy instant' to physiological responses, illustrating how spiritual insight can directly impact the body's stress and relaxation mechanisms.
In the source video, this keypoint occurs from 00:13:45 to 00:15:45.
Sources in support: Host (Host of 'Prohibido Obedecer' podcast)

