Panch Akasha are five spaces inside body in yogic practice.
Akasha or Shunya means space, vaccum or sky and panch means five. These five
spaces are
Shunya Akasha
Ativa Shunya or Ati Shunya
Maha Shunya
Shunyati Shunya and
Antah Shunya
As per Hathayogapradipika,
Shunya Akasha is inside the heart lotus (Anahata Chakra);
Atishnuya is the akasha inside the throat lotus.
Atishnuya is the akasha inside the throat lotus.
Mahashunhya is the akasha inside the lotus between the ajna
chakra (eyebrows)
Information about Shunyati Shunya and Antah Shunya is found
in the Satchakranirupana of Paramananda. It is said that meditation on Antah
Shunya brings about mukti or liberation.