http://www.jcrows.com/trogawa_mentaldisorders.html
Meditation practitioners of tummo4 should know that they are apt to intensify srog-adzin-rlung, �the life-grasping wind,� in their body, so they need to be careful and practice correctly. Meditators of prana5 (Sanskrit for �breath-control visualizations�) should know that the chakras in their channels could be irreparably damaged if they do not follow the rules and therefore they need to be especially cautious. For example, a prana-practitioner is likely to react with intense fear when someone unexpectedly knocks on his door; a current of fear can soar through the visualized subtle central channel up to the head-chakra, the seat of srog-adzin-rlung, on account of what would otherwise be perceived as a slight irritation. In radical cases of faulty practice, frightening or endangering reports can cause the winds in the body of a prana-practitioner to uncontrollably surge upwards and, as a result, destroy the flow of energy in the body, even retarding the brain and leaving a victim to shake for the rest of his life.
