Before revision: The pose was practised from the 17th century onwards in hatha yoga under names such as Narakasana, Kapalasana and Viparitakaranasana; its purpose as a mudra was to reverse the downflow and loss of the life-giving substance ( amrita or prana ) through the use of gravity.
After revision: The pose was practised from the 17th century onwards in hatha yoga under names such as Narakasana, Kapalasana and Viparitakaranasana; its purpose as a mudra was to reverse the downflow and loss of the life-giving substance ( Bindu ) through the use of gravity.