Vyakhya has been defined as विवरणात्मकशब्दसमूहरूपोग्रन्थविशेषः। meaning a particular composition explanatory in nature. Arunadatta in his Sarvanga Sundara commentary for Ashtangahrdayam explains thus | Vyakhya has been defined as विवरणात्मकशब्दसमूहरूपोग्रन्थविशेषः। meaning a particular composition explanatory in nature. Arunadatta in his Sarvanga Sundara commentary for Ashtangahrdayam explains thus |