~ Shock ~
Mental shock “suspends” Qi and affects the Heart. It causes a sudden depletion of Heart-Qi, makes the Heart smaller and leads to palpitations, breathlessness and insomnia.
“Shock affects the Heart depriving it of residence; the Mind has no shelter and cannot rest, so that Qi becomes chaotic”.
Shock also "closes" the Heart or makes the Heart smaller. This can be observed in a bluish tinge on the forehead and a Heart pulse which is Tight and Fine.