"Vairocana is described as the buddha who has no back & front. He is panoramic vision, all pervading with no centralized notion. So Vairocana is often personified as a meditating figure with four faces simultaneously percieving all directions. He is white in color, because that perception does not need any other tinge, it is just the primordial color, white. He is holding a whell with eight spokes, which represents transcending the concepts of direction and time. The whole symbolism of Vairocana is the Decentralized notion of panoramic vision; both center and fringe are everywhere. It is complete openness of consciousness, transcending the Skandha of consciousness.
Along with that there is a vision of the realm of the gods. The depth of the blue is terrifying because there is no center to hold on to, but the glimpse of the white light is like seeing a lamp burning in darkness, and one tends to work towards it. The realm of the gods also happens in our daily life experiences.
Whenever we are absorbed in a spiritual state, a tracelike state of joy and pleasure involved in our own self and it's projections, wheneer that joy comes there is also the possibility of its opposite, the centerless, all pervading quality of Vairocana. It is extremely irritating. Not at all attractive because there is nothing to indulge in, no basic ground in which we can enjoy ourselves. It is all very well to have a panoramic vision of openness, but if there is no one to percieve it, it is terrible from the point of view of ego. The contract between the realm of the gods and Vairocana constantly happens in life, and often the choice is let to us, whether we should cling to a centralized source of spiritual pleasure, or whether we should let go into pure openness without a center.
This experience comes from aggresion, because aggression holds us back and keeps us away from seeing Vairocana. Aggression is a definite, solid thing; when we are in a state of complete anger it is like imagining ourselves to be a porcupine, putting out everything possible to protect ourselves. There is no room for panoramic vision; we do not want to have four faces at all, we hardly even want to have one eye. It is very centralized and completely introverted, that is why anger might make us run away from the expansive quality of Vairocana."
A small sniippet from "the Tibetan Book Of The Dead"