What is Brahmarandhra and why is it significant?

Brahmarandhra means the aperture of Brahma — the specific point at the very top of the skull, corresponding approximately to the fontanel in a newborn, through which consciousness enters the body at birth and exits it at death. In yoga, awakening the Sahasrara means consciously opening this Brahmarandhra — allowing individual consciousness to expand beyond its identification with the limited body-mind complex. Many practitioners report physical sensations at the crown during meditation — warmth, pressure, tingling, or a sense of opening — as signs of Brahmarandhra activation.