This is the shape from saying ‘AUM’
into electronic transmitter , as demonstrated by Ajit Mookerjee.
It is theorized that perhaps they felt ‘obligated’ to do recover better, and the stress itself caused the complications.
The ‘aura’ is the human electrical field. It can be measured.
The body sends out electrical signals; their frequency and strength varying with the strength of activity and health of the nervous system, or body/mind.