The word 'shock' is used for a concussion. It means, an external injury to the body by an external factor. In addition to just feeling, burning, frostbite, mourning, etc. can also be considered as a shock. For this reason, a separate chapter has been devised for some of these shocks. Sadyavrana is like this, despite the trauma, he did not take it here as he owes more for bleeding. Since the trauma is an external attack, the attack is large and sudden, resulting in some fatal or major injury.