It follows from this phenomenon (tested hundreds of times) that every thing may carry around it an invisibly written history. The same thing applies to the human being. Every one of us carries around him a radiance invisible to the human eye, but perceptible to the trained mind. Inscribed in this radiance in the shape of pictures are the most important results of our thoughts and our actions. In accordance with Tradition this radiance is termed the aura, and there is an aura for every principle. Thus there will be an aura of the physical body, of very small extent, an aura of the astral body, an aura of the mind. It is this last which was recognised by religious tradition surrounding the heads of saints and divinities with halos. It is thanks to this radiance of the three principles of the human being that we can explain many seemingly strange phenomena, such as sudden sympathies or antipathies, intuitions, and so-called unconscious previsions, etc.