While in the innermost part of the yantra inside the enclosure of shiv and shakti triangles lies the circular dot or bindu where by Kāla Bhairava reside in union together with his Shakti. Even when the discussion isn't of the (demi-)god but of transgressive saints, as in Hudson 1989 (cited https://health-lists.com/story19260920/5-tips-about-bhairav-you-can-use-today