Cave of Brahma
The crown of the head or crown chakra in various spiritual traditions. The Cave of Brahma is presented metaphysically in Hindu scripture as the abode of Brahman, the ultimate reality in the religion's philosophy. In yogic traditions, it is in fact a physical locale at the peak of the cranium releasing heat and providing an energetic conduit from the earth through the body to the firmament. In the practice of Sacred Geometry, the Cave of Brahma represents the aspect of human consciousness capable, when activated properly, of perceiving higher dimensional planes.
