Akasha or Shunya literally means space, vacuum or the sky in Hinduism. Pancha means five. The fives spaces inside the body as per Yoga are: Shunya Akasha, Ativa Shunya, Maha Shunya, Sunyatishunya and Antahshunya. In ancient Hindu philosophy, the word ghatakasha (the empty space contained inside an earthen pot, or ghata) appears at several places, to bring out the fact of indivisibility or uniformity of space. Chidakasha is a term often used to indicate the space inside the human body, which is said to be the abode of the mind, the atman, the spirit or Brahman (meaning intelligence, consciousness, etc.) Indrayoni In Taittiriya Upanishad (I. 6.2), it is said that the “vacuum inside hrdaya is the abode of the indestructible real self”, which is inside the skull. It is called indrayoni i.e., door to Brahman. It is important to note here that hrdaya in this mantra means the brain and not the heart. Patanjali has also used the word hrdaya in Yogasutra (III.34