Phowa meditation, a Tibetan Buddhist practice, is said to involve the conscious transfer of one's mind or consciousness at the moment of death. In traditional accounts, it's believed that successful practitioners of Phowa may develop a small opening at the crown of the head, often referred to as the *"aperture of Brahma."* This is considered a sign that the practice has been successful and that the consciousness has been liberated or transferred.
However, it's important to understand that these accounts are symbolic and spiritual in nature. There is no scientific evidence to support the idea that a physical gap or hole forms in the skull as a result of meditation. The descriptions of such phenomena are typically part of the mystical and religious language used to convey spiritual experiences or realizations.
In summary, the idea of a small gap forming in the skull due to Phowa meditation is more of a symbolic or metaphysical concept rather than a physical or medical reality.
