There were many potions in this world that could regenerate a Limb or heal a punctured eye. A knight can lose any part of their body, including a lethal amount of blood from their body, but there might still be a chance that they might come back.
Even for mortals, if they were to lose their heart, a simple heart replacement surgery can save their lives for years to come. But a problem occurs when the same happens to a Knight.
Ignoring the compatibility issues and strength of a Knight. It's next to impossible for a Knight to regain their heart through normal operations. They either need a donor from someone who shares their blood or be forced to sustain themselves through regular operations and magically treated mortal hearts which need to be changed every few months.
Which Hemant was forced to adopt as he was the only one with his Tauran Bloodline on the continent of Brihma.
